dark · sans · playful · creative · bright
DESIGN.md inspired by Spline
Pure-black 3D-design canvas with electric-blue CTAs and a playful multi-color accent set — the browser becomes the viewport.
By webdesignhot · spline.design ↗
$ npx @webdesignhot/design-md add spline
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Aave Ghost-soft DeFi — lavender #978fff on white, custom Aave Repro sans, pastel gradients in a usually-brutalist lending space. Accenture Dark hero, white Graphik, and one electric purple — the `>` greater-than mark made into a whole consulting brand. '#a600ff' is always moving forward. Adidas Pure-black sport-utility, AdihausDIN/adidasFG uppercase, three-stripe geometry — the engineering canon for global sportswear. Adobe Creative-suite chrome — paper-white canvas, magenta-to-orange wordmark gradient, and Adobe Clean carrying every product grid. Aesop Monochrome-warm apothecary — ivory canvas, charcoal type, Suisse Int'l set small, 0px corners. Affirm Honest-money fintech in the dark — indigo #4a4af4 CTAs at near-pill 96px radius, light-weight white headlines, no fine print. AgentKit Three swappable themes for AI agent products — editorial dark, daylight bright, fintech cool-blue. Airbnb Pure-white marketplace canvas with one Rausch coral and Cereal — generous photography, soft pills, modest type. Airtable White-canvas editorial workflow software with full-bleed coral and forest signature cards punctuating a near-black pill-CTA system. Alibaba Electric orange `#ff6a00` + dense merchant grids — the global B2B wholesale floor as a website. Allbirds Oatmeal-canvas eco-minimalism — Geograph sans on warm Amazon Smile-orange CTA, Amazon Ember sans, dense product grids — the canonical everything-store interface. Amazon Web Services Squid-ink navy with Smile-orange CTAs — the densest tile-portal on the cloud-platform internet. American Express White-canvas premium-restraint membership UI — signature Amex Blue accent, near-black editorial type, concierge-tier hierarchy. Amplitude Light-canvas digital-analytics surface — IBM Plex Sans, grey #565656 body, black full-pill CTAs and a signature #1e61f0 blue. Anthropic Editorial broadsheet for AI safety — cream canvas, Anthropic Serif body, terracotta clay accent, magazine geometry. Anytype Pure-black canvas, white ink, and a multi-color 'any' palette — a local-first, encrypted knowledge base that turns privacy into a colorful object. Apple White-canvas product theatre — SF Pro Text, 980px pill CTAs, and a single-blue accent system. Apple Music Pink-red gradient hero with album-grid kinesthetics — SF Pro precision, signature `#fa233b` brand pink, glassy dark canvas. Apple TV+ Pure-black cinematic theatre with SF Pro and ruthless minimalism — content as the only voice. Arbitrum Arbitrum Blue on white — Layer 2 chain marketing with Inter sans, structured grids, sophisticated-restraint contrasted with Solana's cinematic. Arc Browser-as-personality marketing — buttery cream canvas, Marlin Soft display, hand-tooled blue-and-coral palette. Are.na Bare grey-and-orange minimalism — a single Helvetica-class sans, hairline borders, and a stubborn refusal to optimise for engagement. Asana Approachable work management in soft purple — Asana Sans at modest weights with a rainbow accent palette and warm sky-tinted whitespace. Astro Cosmos navy canvas with violet-to-orange brand gradient — Mona Sans display, Inter body, Astro''s star-chart MPA framework dressed as an observatory dashboard. ASUS Republic of Gamers red `#cd0000` on black with bold sans — Taiwan engineering meets esports brutalism. Atlassian Enterprise-blue corporate canvas — signature Atlassian Blue, Charlie display type, four-product mark. Audi Vorsprung durch Technik on near-black — Audi Type sans, four-rings precision, and a near-monochrome canvas with `#bb0a30` reserved for sport. Auth0 Twilight-blue dark canvas with TWK Lausanne 300 display + Aeonik body — the original identity-platform aesthetic. Away Editorial travel-luggage DTC — Graphik on white, photography-led, sharp 0px white CTAs over dark hero imagery. Axiom Deep-navy observability with a cyan electric accent — Inter for body, JetBrains Mono for every event label, and a structural grid that reads as logs at planet scale. Axios Smart-brevity in chromatic form — blocky white canvas, Tiempos-flavored Atiza serif, signature `Why it matters:` time-bars and bullet-first prose. Bandcamp Bandcamp Cyan + Helvetica — indie-music marketplace honesty, no streaming-platform polish, no algorithmic carousels. Base Coinbase-adjacent L2 minimalism — coinbaseSans on white, signature electric blue Baseten White canvas with Inter and a signature `#6c5ce7` purple — ML model deployment dressed in approachable workshop chrome. BBC News Signature BBC red (`#bb1919`), Reith Sans + Reith Serif, the global broadcaster authority typography of the world''s public-service news. Bear Off-white canvas, a custom bearsans display, a red bear icon, and tealish handwritten underlines — a Markdown notes app dressed as a Mac Pro magazine. beehiiv Aggressive black-on-yellow newsletter punch — heavy display sans, hyper-flat cards, and a `#ffd60a` highway-yellow that reads like a tabloid front page. Best Buy Yellow price-tag mark, electric blue trust, bold sans — big-box electronics design with Geek-Squad confidence. Binance Trading-floor near-black with a single high-voltage Binance Yellow doing all the brand work — BinanceNova for type, BinancePlex for numbers. Biome A white-canvas Rust toolchain page where one deep azure blue does all the work. Black Forest Labs Frontier-lab monochrome — stark white canvas, dark hero, near-black green-tint type, Instrument Sans at 500 throughout. Bloomberg Iconic black-orange financial broadsheet — BWHaasHead headlines, AvenirNextPForBBG chrome, terminal-grade data density. Bluesky Sky-blue `#0085ff` on bright white with Inter sans — the AT-Protocol social network rendered as airy, federated, open. Blur Pure-black canvas, neon `#ff8700` orange voltage, and JetBrains-Mono-default everywhere — brutalist NFT trader terminal as competitive instrument. BMW Corporate-blue calm — BMW Type Next on a cream-tinted white, dark navy hero bands, and the M-stripe triplet in reserve. BMW M Performance black on M-blue/M-violet/M-red — the motorsport variant that turns BMW corporate into track-day theatre. Bolt An electric-blue command line for the web — StackBlitz's AI builder on a near-black #1e1e21 canvas, Inter Display, builder's register. Booking.com Deep-blue commerce engine — Bookin Sans on white, yellow CTA voltage, dense booking-funnel maximalism. Booking.com Booking Blue + signal yellow — the deal-finder design language at maximum density, optimized for conversion not contemplation. Bose Pure black canvas, Helvetica restraint, and premium-audio confidence — sound presented as engineering art. Brex Cool grey-blue surfaces, magenta-to-purple-to-indigo gradient, Söhne 600 — fintech as fast, modern, slightly flashy. Brilliant STEM education with playful diagram-energy — warm coral CTA on near-black, custom Brilliant Sans, illustrated geometry as hero. Bugatti French-engineered austerity — pure black canvas, three Bugatti typefaces, and full-bleed photography as the only voltage. Bun Cream canvas with chunky pink accents and the wide-eyed mascot — a JS runtime dressed as a 1970s bakery sign. Buttondown Indie newsletter software in heavy 900-weight Auto Pro — electric `#0069ff` pill CTAs and soft-yellow highlights on a pure-white canvas. Cal.com Open-source calendly with one bold custom font — Cal Sans on a soft `#f4f4f4` paper canvas. Calm Signature `#0066ff` deep blue + Aktiv Grotesk + meditation-deep cool atmospheric calm. Calm Mindfulness in a serif — Calm Cream canvas, soft moonlit blue and forest green, Visby Round display, breathing-pace motion. Capacities Cream-yellow canvas, Inter at 700 with a Crimson Pro serif fallback, and a yellow underline as page ornament — a PKM that thinks like a sketchbook. Capital One Confident-accessible banking — navy authority, one red swoosh, 2px-sharp blue. Captions Near-white studio canvas, an Exposure display, and a violet brand keyed off a full crayon-box of CSS color vars. Caraway Wholesome non-toxic-cookware DTC — Suisse Works serif on warm off-white, deep teal-green pill CTAs, pastel colorway palette. Cartesia Bright clinical white with a single deep-blue action — voice-AI presented as scientific instrument rather than consumer product. Cash App Electric `#00d54b` green on near-black, Cash Sans monospace-flavoured geometry, and p2p-money youth aesthetic. Casper Cozy DTC sleep brand — Casper navy/indigo ink (`#1e306e`) on a pure-white canvas, deep-navy `#012169` pill CTAs at 32px radius, Calibre body under New Kansas friendly-serif display. Premium that tucks you in. Character.AI Cool zinc canvas, custom atHauss sans, and dark pill CTAs — a roleplay social product dressed in TikTok-grade neutrality. Chase Trust-institutional banking UI — white canvas, near-black ink, bright-blue primary + green secondary CTAs in Open Sans. Chevrolet Gold-cross American classic — Louis sans on white with a `#cd9834` bowtie, a `#003876` corporate blue, and Camaro/Corvette red drama in reserve. CircleCI Light-content CI/CD platform — near-black hero, Inter sans, navy chrome with a restrained CircleCI-green accent. ClassPass Wellness-marketplace energy — coral-pink CTA on warm white, GT America sans, photographed-class-as-hero pattern. Claude.ai Cream paper canvas, Anthropic Sans for body and Anthropic Serif for the headline — an AI assistant set in literary type. Clerk Geist + Suisse on near-black canvas with `#6c47ff` violet CTA — the drop-in-auth dev-tool aesthetic. ClickHouse Near-pure black canvas with electric yellow as the brand voltage — database performance dressed in voltmeter chrome. Cloudflare Infrastructure-grade calm — white canvas, dark hero band, FT Kunst Grotesk, signature Cloudflare orange, full-pill CTAs. Cloudinary Media-API technical infrastructure in confident blue — Inter at modest weights with a deep navy-blue brand and a single chromatic accent for media moments. Coda White-canvas productivity surface — Calibre display over Inter body, near-black UI with a single confident #0066ff blue and warm-cream callouts. CodeRabbit Near-black AI-review canvas — warm CodeRabbit orange accent, Plus Jakarta Sans, sharp 4px white CTAs. CodeSandbox Pale-lime electricity on a Cognition Research-lab monochrome — warm off-white, grotesk display, serif body, sharp 0px black. Cohere Stark white editorial canvas with deep green-black product bands and a CohereText/Unica77 type split. Coinbase Institutional-grade calm — pure white canvas, a single Coinbase Blue, and Coinbase Display set at weight 400 instead of 700. Composio Near-black canvas with deep-electric-blue voltage and a 2x2 terminal-mockup hero — agent infrastructure dressed as developer instrumentation. Convex Warm cream canvas, near-black ink, GT America — a reactive backend that dresses like a broadsheet. Corsair Yellow `#ffff00` lightning on black with Roboto — RGB-everything peripherals and PC components. Costco Warehouse blue + signature red, Helvetica utilitarian — bulk-buying signage translated to web. Coursera University-blue `#0056d2` on warm-white parchment with Source Sans — the canonical online-degree marketplace. Craft Warm-white canvas, an Untitled Serif display over Untitled Sans body, near-black ink, and full-pill CTAs — a notes app dressed as a fine-press editorial. Cursor Warm cream IDE-marketing — `#f7f7f4` canvas, `#26251e` ink, custom CursorGothic display, JetBrains Mono code, vivid orange accent. CVS Health CVS-red heart on a clean white canvas — custom CVS Sans, near-black ink, trustworthy healthcare clarity. Databricks Signature Databricks Red Datadog NationalWeb on white with the iconic `#632ca6` purple — observability dressed as an enterprise dashboard, structurally dense, chromatically restrained, multicolour where the data demands it. dbt Labs dbt orange Deel A warm dark canvas with electric coral and orange accents — global payroll dressed as a confident product portrait. DeepSeek Deep-blue Chinese-tech minimalism — a research lab dressed in `#4d6bfe` and stark white space. Deliveroo Deliveroo Teal on white — food-delivery design at maximum saturation, custom Roo Sans, kangaroo-mark mascot energy. Dell Pragmatic blue `#007db8` with custom Roboto-derivative — business-first PC commerce since the dorm room. Deloitte Big-4 gravitas — pure-white canvas, true-black ink, Open Sans at light 300, and the signature green dot. Delta Air Lines Whitney sans on near-white, Delta navy + signal red — the Hartsfield-Jackson aircraft livery translated to web typography. Deno Inkwell black on warm white with the dinosaur mascot — TypeScript runtime as Eric Carle children's book. Descript Cream-pink canvas, a custom Brett display serif, and a wine-dark CTA — an AI video editor that ships like a magazine. Discord Indigo-ground hangout — gg sans body, ABC Ginto Nord display, 12-16px tile radii, white pill CTAs. Disney+ Deep navy gradient streaming hall with custom Inspire display sans and the unmistakable Disney+ wordmark arc. DoorDash Signature red-orange CTA, custom DoorDash Sans, delivery-funnel commerce — the dominant on-demand local marketplace. Drizzle ORM Near-monochrome white canvas, dark #282b3b controls, and one signature lime-green serpent (#c5f74f) — a no-magic TypeScript ORM. Duolingo Owl-green confidence and DIN-Round buttons that lift like candy — the gamified language app distilled to four colors and one mascot. dYdX Pure-black canvas, Satoshi-compressed display, and one signature indigo-purple #7774ff CTA — a pro-trader perps terminal as a brand. Dyson Engineering-greyscale on white — Dyson Futura Light at 44px (weight `300`, never bold), body ink `#333` not pure black, zero-radius CTAs with a fluid-dynamics ripple hover, and a single magenta accent reserved for haircare. The web brand of an engineering company that refuses to look like a marketing site. ElevenLabs Near-black voice-tech ground with white voice-wave aesthetic — Inter at studio scale, pill CTAs, and a single saturated accent that reads as both wayfinding and brand. Emirates Custom-serif luxury — Emirates red on light grey, gold accents, Fly Better editorial calm. Epic Games Pure-black canvas with custom Brutal Type / Heading Now display — Fortnite-saturated marketing meets PC-storefront merchandising. Ethereum Off-white canvas, ethereum-blue `#1c64f2` voltage, and Inter + serif duet — community-owned protocol as open documentation. Etsy Burnt-orange CTA, Graphik humanist sans, handcrafted-warmth aesthetic — the marketplace for makers and small batch. Everlane Pure white canvas, Maison Neue Book, near-black ink — radical-transparency DTC minimalism. Excalidraw Literal hand-drawn whiteboard — wobbly SVG strokes, Virgil-style handwriting, and a deliberately primitive UI that turns digital sketching into nostalgia. Expedia Navy commerce + Mango yellow voltage — Expedia Sans, dense travel-funnel density with One Key loyalty colour-coding. fal Pure white canvas, focal display at 120px, and near-black #252527 CTAs — generative-AI inference at editorial scale. Fantastical White paper, Effra geometric sans, full-round blue pills, and a rainbow of app-icon glass squares — a calendar app marketed like Apple''s Pro Apps. Ferrari Cinematic editorial in near-black — Rosso Corsa restraint, FerrariSans 500, and full-bleed cavallino photography. Figma Bright multi-color section bands with figmaSans display and figmaMono eyebrows — a marketing site that designs in scenes. Financial Times Salmon-pink page (`#fff1e5`) — the world''s most recognizable newspaper background, paired with Financier display + MetricWeb sans for global markets coverage. Fireworks AI Light canvas with Inter sans and a signature `#6720ff` purple-amber-orange spark — fast-inference platform dressed in speed-of-light kinetic chrome. Fly.io Mackinac display + Fragment Mono on a violet-saturated canvas — a PaaS that dresses like a small-press magazine. Ford American-truck heritage in corporate blue — Antenna sans, oval-script wordmark, and a deep `#003478` voltage that has carried the brand since 1927. Fortnite Battle-royale design at maximum saturation — neon yellow + electric blue on near-black, Burbank Big condensed display, season-driven brand kaleidoscope. Framer Black-on-white maximalism with electric gradient floods — Inter Display at heroic sizes, motion as a first-class material. Frontegg PP Neue Machina display + Neue Montreal body — plug-and-play user-management with deep-blue gravitas. Gemini (Google) Blue-into-violet gradient, Google Sans, soft Material 3 surfaces — Google''s house style applied to a chat interface. Ghost Warm-cream content CMS aesthetic — Inter for chrome, a soft serif for the writing surface, and a single confident green for action. GitHub Dark-canvas developer-platform marketing — Mona Sans variable headings, lime-green accent, near-black ground. GitHub Copilot Pure-white canvas, pure-black inverted CTAs, Mona Sans display — GitHub's editorial confidence applied to AI tooling. GitLab Light DevOps-platform marketing — GitLab Sans, near-black ink, oversized 96px headlines, tanuki-orange accent. Gitpod Editorial dev-tool calm — light canvas, near-black navy text, ABC Diatype sans + Martina Plantijn serif, 8px radius. Glean White enterprise canvas, near-black indigo headlines, and one electric Glif Near-black Manrope on near-white, anchored by one confident green CTA — a playful creative-agent canvas. Glossier Post-pink austerity — white canvas, single-family Apercu, 0px radius rectangles. The brand that invented millennial-pink chrome in 2014 has retired pink to a footer wash and a single badge color. Grafana Dark observability canvas with the iconic `#f46800` orange — Inter for body, Roboto Mono everywhere a label hides, multi-colour chart palette ripped straight from a real dashboard. Granola White paper, a custom Quadrant book serif, and an olive-green CTA — an AI notepad that dresses like a stationery shop. Graphite Near-black developer canvas — Matter type, near-white ink, one clean blue, 8px CTAs. Graza Squeeze-bottle olive-oil DTC — quirky GT Alpina Typewriter on peachy-cream, olive type, chartreuse-lime CTAs at 32px. Groq Warm off-white canvas, light-weight Space Grotesk, and a single hot `#f43e01` orange — speed-obsessed AI inference. Grubhub Friendly red-orange CTA, Sentinel display + Avenir body, dense delivery-app commerce — the long-running incumbent. Gumroad Hot pink `#ff90e8` on cream, ABC Favorit at 96px, hard black borders and offset shadows — neo-brutalist creator commerce. Gymshark Pure white canvas, black ink, Montserrat bold display over Roboto body — every CTA a fully-rounded 56px pill. Harvey Counsel-grade dark — warm near-black canvas, custom serif display, ivory CTA, sharp 4px monochrome. HashiCorp Black canvas hosting a per-product color portfolio — Terraform purple, Vault yellow, Consul red, Waypoint cyan — multi-product identity made literal. Hashnode Developer publishing platform — deep navy canvas, electric blue brand, Inter sans + JetBrains Mono code chrome. HBO Max Deep purple-black premium streaming canvas with custom Sharp Grotesk and the unmistakable Max wordmark. Headspace Signature `#ffac1d` orange + custom round display + meditation-friendly playful warmth. Height AI-PM workspace dressed in chalk pastels — Inter at modest weights over a near-paper canvas, with a single confident accent and an AI-purple voltage moment. HEY Warm-white canvas, deep purple-ink, and a crayon-box of saturated pastels — opinionated email dressed as a friendly poster. HeyGen Clean white canvas, ABC Solar Display headlines, and an electric-cyan #00c3ff CTA with black text — consumer-AI video, friendly and bright. Hilton Hilton Blue on white — confident-contemporary hospitality with Söhne-adjacent sans, blue-on-white photography-led layouts. Honda Reliability-first restraint — HondaGlobalFont on white, signature red HP Cyan-blue `#0096d6` HP-circle on white with Forma DJR — the 84-year-old technology brand''s mainstream face. HubSpot Warm coral-orange (#FF7A59) on a near-white canvas, a humanist sans set generous and round, and a brand voice that turned inbound marketing into a methodology. Hugging Face AI community canvas — deep blue-black ground, Source Sans Pro headlines, pill auth + 8px tile cards. Hulu Near-black canvas anchored on Hulu Green `#1ce783` with Graphik sans — the bright, cable-meets-streaming UI. Hume AI Warm cream canvas, custom Fellix type, and near-black pill CTAs — voice-AI research presented with humanist calm rather than tech coldness. Hyperliquid Near-black IBM Carbon Design System made literal — pure-white canvas, IBM Plex Sans at light 300, square corners, and one assertive `#0f62fe` blue. Ideogram A bright white canvas with a single saturated violet cue — a typography-first AI image tool that lets the gallery do all the talking. IKEA Yellow `#ffdb00` on blue `#0058a3`, Noto IKEA sans, Swedish-democratic-design retail at planetary scale. Inngest Durable workflows on a near-black canvas — Whyte display, muted gold CTAs, sharp 0px edges. Instacart Grocery-shopping-list practical — Instacart Sans on white, signature carrot green Intercom Cream canvas, near-black Saans display, and electric-cobalt JetBlue JetBlue Blue on white — friendly aviation with a custom rounded sans, Mint cabin orange accent, lower-case microcopy. Jupiter Jupiter lime on near-black — Solana DeFi aggregator with Inter, a cat-in-space mascot, and playful pill-CTA energy. Kagi A premium search engine dressed in warm cream and Plex — the indie answer to ad-funded search. KAYAK Burnt-orange flight-search density — Open Sans on white, comparison-engine maximalism, price-graph data viz. Khan Academy Signature `#14bf96` mint green on white with Lato sans — free-for-everyone education in a warm, encouraging register. Kinde White canvas with Inter 72/500 display + dev-friendly pink-coral accent — the approachable auth-billing-access platform. Kit A cream newsletter canvas with a custom KitSans display, a Libre Franklin secondary, and a pastel-rainbow chip set — the editorial register reborn from ConvertKit. Klarna Klarna PINK `#ffa8cd` on white, near-black navy `#0b051d` ink, Klarna Title at billboard scale. Kraken Kraken Purple `#7132f5` on white — Kraken-Brand display + Kraken-Product UI for a calmer, less-bombastic crypto exchange. Krea A pure-black studio with Suisse Intl set quietly at 60px — a creative-AI gallery that lets the work and the cobalt CTA carry the colour. Lambda Near-black Lamborghini Cathedral of darkness — true black canvas, Lamborghini Gold accents, and LamboType angled-terminal display. LangChain Deep navy canvas with Inter precision and a quietly confident teal accent — agent orchestration dressed as engineering documentation. Ledger White canvas, Inter at rest, and one unmistakable Ledger Orange on full-pill CTAs — security made calm. Lego Lego Yellow + Red on white — primary-color toy theatre, custom Lego Sans, brick-as-hero photography. Lemon Squeezy A dark hero with white Circular display, signature lemon-yellow Leonardo.Ai A pure-black cinematic canvas where ufficioDisplay headlines and white full-pill CTAs frame generative imagery — a film studio's title card, Canva-owned. Linear Dark-canvas product surface — pure-black ground, indigo accent, custom Inter weights, pill CTAs. Liquid Death Black canvas, condensed all-caps Acumin Pro, stark black-and-white — heavy-metal brutalism for canned water. LiveKit Realtime audio-video infra — Public Sans 300 weight on near-black, signature cyan LlamaIndex White canvas with Inter and a signature `#1b9aff` blue — RAG infrastructure dressed as a clean technical reference card. Logitech Soft consumer-tech blue gradients with Brown sans — design for the way you work, play, and create. Loom White canvas, Charlie Display sans, and a confident Atlassian blue pill — async video that feels like a calm, friendly workspace. LottieFiles White-canvas animation studio — DM Sans display at 96px, Inter body, near-black text, one signature teal #019d91. Lovable Pink-into-violet gradient on white — vibe-coding dressed in playful, friendly chromatics. Lowe's Signature navy blue on white canvas — residential-DIY warmth rendered as big-box retail. lululemon Quiet-luxury athleisure — Saans variable on bone-off-white, off-black ink (`#140f0f`, not pure black), pill CTAs on square product cards, mixed-case sentence-cased headlines tracked −4px. The athletic brand that murmurs. Luma AI A cinematic black screening room that opens into a white studio — Graphik set tight, every CTA a full white pill. Magic Frontier-research minimalism — white canvas, Aeonik display, Suisse Intl body, near-black ink, one radix-blue accent. Magic Eden Mint-cream canvas, magenta-mint accent duet, and a custom Foundry display — Solana-native marketplace as boutique gallery. Mailchimp Cavendish-yellow chunkiness — a custom display serif (Cooper Light), the signature `#ffe01b` block, and a brand voice that hugs you while it ships campaigns. Marriott Luxury-hospitality restraint — Caudex serif for editorial moments, off-white canvas, gold-bronze CTA, photographed-resort hero. Mastercard Cream-canvas editorial fintech, circular-portrait orbits, MarkForMC at 450 weight — institutional-but-warm payments brand. MasterClass Pure-black cinema with custom display serif and editorial reverence — celebrity-instructor learning as a premium streaming product. Medium Editorial reading-first publishing — magazine-grade serif body, GT Super display, signature green-on-white pill CTAs. Mejuri Monochrome luxury — white canvas, near-black ink, Syndicat Grotesk small caps and a Simon Mono accent. The jewelry photography does all the color work. Mercedes-Benz Three-pointed-star authority — MBCorpo on near-black canvas, silver-blue Mercury A near-pure white canvas with a literary serif headline and a signature mercury-mint accent — banking dressed as a quiet magazine. Meta Optimistic blue (#0467df) on a white corporate canvas — Optimistic Display headlines, generous space, social-platform conglomerate at rest. MetaMask Foxy Orange on white — Ethereum wallet design with custom MM Sans, 8-bit fox mascot, friendly-utility voice. Microsoft Fluent surfaces — off-white canvas, Segoe UI Variable Display, and a Cortana-blue action color carrying every product. Midjourney A deep cosmic canvas where JetBrains Mono headlines float over a wide-gamut OKLCH rainbow — a research lab dressed as a chapel. MiniMax Stark monochrome canvas broken open by vibrant gradient product cards — coral, magenta, blue, purple as model identity. Mintlify Documentation-platform marketing — pure white canvas, mint-green accent, Inter at tight tracking, near-black pill CTAs. Miro Canary-yellow Mistral Butter-yellow canvas, Arial as a deliberate anti-tech statement, and zero-radius rectangles — French AI as a brutalist art-school manifesto. Modal Serverless GPU infra in lime-green — `#0c0c0c` canvas, electric `#7fee64` accent, custom Modal Mono on every chip and code block. Monday.com Project management in confident red-pink — Poppins display at bold weights with a colorful saturated palette and a playfully energetic visual rhythm. MongoDB Signature MongoDB green Monzo Hot Coral `#ff4f40` on bright white, MonzoSans humanist geometry, and a transparent challenger-bank warmth. Motion AI-calendar productivity in green-and-purple — Inter at modest weights with a green-to-purple voltage gradient signaling the AI scheduler, anchored by a clean white canvas. MSI Dragon-red `#ff0000` on jet black with bold display sans — the Taipei dragon-heritage gaming hardware brand. Mux Video API for developers — Aeonik on light-cream, Rotonto display, JetBrainsMono CTAs, sharp 0px corners. MyFitnessPal Fitness-tracking utility — MFP Blue on white, Inter sans, dense calorie-and-macro grids, conversion-first navigation. Neon Serverless Postgres dressed in late-night green — a near-black canvas with a single electric mint accent. Netflix Pure-black streaming theatre with signature `#e50914` red and Netflix Sans — the canonical media-tile grid. Netlify White canvas, dark hero, Figtree-heavy 800 display — electric-teal pill CTAs, indigo links. Nike Pure black, pure white, Helvetica Now — pill CTAs and full-bleed athletic photography on a single soft cloud gray. Nintendo Joyful red on paper-white — Nintendo's site is the toy-aisle of the web, illustration-rich and refusal-of-darkness intentional. Notion Off-white canvas with Lyon serif accents and a custom NotionInter — a workspace dressed as a literary magazine. Nubank Roxo #8d0de3 as the whole brand — white nuSansDisplay on dark purple, 999px pill CTAs, anti-bank warmth. Nuxt Forest-green `#00dc82` glow on a near-black canvas — Vue-flavored warmth dressed for the cosmos. NVIDIA Engineering-grade canvas — pure black hero / paper-white body / one violently saturated `#76b900` green that carries every CTA and corner square. Obsidian Near-black canvas, near-white text, a single electric-purple CTA and a crystal mark — a local-first knowledge base that looks like the editor it ships. Omnivore Open-source read-it-later — near-white reading canvas, focused emerald-on-paper brand, archival elegance after the Eleven Labs sunset. On Swiss-engineered monochrome — true-black ink on white, custom On sans, bold 700 heads and 40px full-pill CTAs. OpenAI Pure white canvas, OpenAI Sans set in calm 500-weight, and a single black pill for the only action that matters — try ChatGPT. OpenRouter Pure-black canvas with custom display typography and pragmatic mono — LLM-router infrastructure dressed as a terminal billing dashboard. OpenSea Pure-black canvas, electric `#2081e2` blue, and Inter at trader-pro density — the original NFT marketplace as financial terminal. Optimism Pure-white canvas, signature `#ff0420` red voltage, and Inter at confident L2 register — Ethereum rollup as bold optimistic infrastructure. Ory White canvas with Inter 48/400 display + signature deep-navy `#0f172a` CTA — open-source-first identity for technical teams. Our Place Warm-heritage cookware DTC — Cheltenham serif at light 300 on a cream canvas, terracotta SHOP NOW CTAs, Plaid body. Oura Pure-black canvas with Inter precision and gold-stamped scores — the premium-ring health-precision aesthetic. Paddle Merchant-of-record calm — condensed serif headlines on a near-black canvas with warm cream and sand CTAs. Paper Website A literal sheet-of-paper website — single literary serif, off-white sheet canvas, narrow reading columns, ink-blue links. Patagonia Outdoor-cooperative editorial — Futura sans on cream, ranger-station palette, photography-led story-first marketing. Patreon Patreon Coral on white — creator-economy patronage with Söhne sans, photographer-led marketing, mid-2024 brand refresh language. PayPal Dual-blue corporate trust — PayPal Sans Big over white, with a deep-navy ink and a sky-blue counterpoint. Peloton Signature `#cb1e4e` red on midnight ink, Inter display, instructor-led premium-fitness storefront. Penpot Open-source design-and-code platform — dark hero, Work Sans display, mint-green action surface on a white canvas. Perplexity Cream paper canvas, custom pplxSans, and the unmistakable Tropic-cyan accent — a reference-library answer engine dressed in warm tones. Phantom Phantom Purple on near-black — crypto wallet design that respects the user's intelligence with editorial restraint. Picoko Warm-white canvas, weight-900 Outfit, and one blazing pink — product photography reimagined in seconds. Pika A cream-canvas AI video studio in custom Telka type, with peach and black pill CTAs. Pinecone White canvas with Inter and a signature `#1cb0d0` cyan — vector database technical-marketing dressed in clean blueprint chrome. Pinterest Masonry feed as product, restrained chrome around it — white canvas, near-black text, Pinterest red reserved for action. Pitch Enormous Mark Pro headlines on a black hero, then a clean white workspace — violet Plaid Pale blue trust on white, classical Stripe-adjacent type, and a Benjamin-Franklin-as-mascot moment of personality. Plain B2B support tool with a Dinamo grotesk and a single radioactive `#1ad379` action — Linear-restraint applied to support. PlanetScale Pure-black canvas, blood-red accent, mono-set numerals — a database brand styled like a financial terminal. PlayStation Sony's Cinema-Black canvas with PS Blue and a custom SST sans — gaming-as-cinema, premium hardware in editorial restraint. Polar Dev-tool obsidian — 8rem editorial display headlines, indigo accents, Louize serif moments. Polygon Deep purple `#8247e5` voltage, soft surface ladder, and Inter at enterprise calm — Ethereum L2 as institutional infrastructure. Porsche Engineering-purity black-on-white — Porsche Next at 96px regular, Rosso PostHog Cream-canvas analytics with mustard-yellow CTAs and IBM Plex — open-source craft, not SaaS gloss. Postmark Postal-yellow #ffde00 + warm-black #1c1d1f + paper-white canvas — the transactional email API designed like a friendly post office sign. Prime Video Amazon-blue streaming canvas with Ember sans and the dense, utility-first marketplace UI vocabulary. Prisma White-paper canvas, navy ink, a single confident teal — the type-safe data layer dressed as documentation. PropelAuth White canvas with SF Pro Rounded display 60/900 + deep-navy ink — B2B multi-tenant auth with Apple-tinted polish. Quizlet Study-buddy design — Quizlet purple-blue on white, custom Hurmes Geometric, flashcard-as-hero pattern. Qwik Electric purple-to-blue gradient on near-black — resumable execution dressed as a lightning bolt. Railway Ship software peacefully — IBM Plex Serif headlines on a deep eggplant canvas, with a single confident violet for action. Rainbow White canvas, SF Pro Rounded Black at 96px, and a pink-orange-blue-purple rainbow — the friendliest Ethereum wallet onchain. Raindrop.io White paper, system-ui sans, soft watercolor blob backgrounds, and a vivid `#0b7ed0` blue CTA — a bookmark manager that ships like a creative-tool sketch. Ramp Off-yellow `#fcfb70` and black-on-white editorial — finance ops dressed as a printed annual report. Rare Beauty Soft lavender on cream — Selena Gomez's beauty brand with mental-health-aware editorial restraint and serif-led product cards. Raycast Near-black canvas, glowing keycaps, monospaced shortcut chips — a marketing site that thinks like a launcher. Razer Neon `#44d62c` snake-green on jet black with Roboto — the For Gamers, By Gamers visual signature. Readwise Pastel-orange book-club warmth — soft cream canvas, friendly Tiempos serif accents, and a tangerine that signals 'this is your library.' Recraft A jet-black studio where ABC Gravity Condensed slams the headline at weight 900 and a single electric-lime CTA does all the shouting. Reddit Front-page-of-the-internet orange — community-card density, IBM Plex Sans display, and a confident Relume Monochrome editorial — warm off-white, near-black, and oversized regular-weight display for an AI website builder. Remix Signature `#3992ff` blue on pure white with Inter — a nested-routes web framework dressed as a manifesto poster. Render Lavender on white — a PaaS that swapped Heroku purple for a candy-bright #8a05ff and kept the airy whitespace. Replicate AI-API marketing — light page chrome, dark hero canvas, rb-Freigeist Neue display, JetBrains Mono code, sharp 0px corners. Replit Saturated turquoise on `#0e1525` ink — the cloud-IDE aesthetic with IBM Plex DNA and a JetBrains Mono soul. Resend Pure-black canvas with Domaine Display serif at 96px and Commit Mono code chips — email infra that thinks in italics. Retool Pragmatic blue #3a55fc + Inter + dense product mocks — the internal-tool platform that designed itself like a well-organised admin panel. Reuters Global newswire restraint — signature orange (`#ff8000`), Knowledge Medium custom sans, broadsheet rigor for the world''s oldest news agency. Revolut Dark Aeonik Pro hero, white Inter content, near-black `#191c1f` ink, fully-pill CTAs and gradient-accented fintech sleekness. Riot Games Crimson `#d13639` red on near-black with custom Riot Beam display — esports-tournament drama and competitive-MOBA editorial. Ritual Visible-supply-chain wellness — white lab canvas, Ritual Navy #142b6f everywhere, CircularXX, 25px rounded CTAs, warm yellow as the one accent. Rive Chunky animated display type and saturated playful colour — interactive graphics platform that wears its motion design on its sleeve. Robinhood Chartreuse `#CCFF00` lime on a black `#000` canvas, Martina Plantijn serif headlines paired with Capsule Sans Text — financial-editorial register, not tech-app sans. Roblox Bright `#ed1d24` red on white with Builder Sans — the youth-block-builder playground turned multi-billion-game social platform. RunPod Deep slate canvas with Inter and a signature `#673ab7` purple — accessible GPU cloud dressed in friendly developer chrome. Runway A near-black research canvas with ABC Normal headlines pulled tight at -2.5px — a film studio, an ML lab, and a brutalist gallery in one shell. Salesforce Cloud-trust dashboards — Salesforce Sans on a sky-blue ground, with Astro the bear standing guard over a dense CRM portal. SAP Enterprise-ERP precision in cobalt — SAP72 sans, signal-blue accents, and a calm white canvas built for trust. Scale AI White canvas, Aeonik at a colossal 116px, black 8px CTAs, and a signature deep-to-light purple gradient (#5933b2 → Segment Twilio Segment's customer-data-platform canvas — Whitney SSm humanist sans, navy-on-white, single confident `#1866ee` blue. Semafor Paper-cream canvas (`#f8f5d7`) with FeatureFlatHeadline serif and signature flag-style topic columns — global-news editorial built for the post-Twitter era. SendGrid Functional API-blue on white — the email-platform dashboard aesthetic, now folded under the Twilio umbrella. Sentry Deep-aubergine observability — Dammit Sans display, Rubik body, JetBrains Mono code, signature violet #7553ff and pill CTAs. shadcn/ui Copy-paste components in pure black-on-white — the most influential design system not actually shipped as a library. Shopify Dark-first commerce theatre — 96px NeueHaasGrotesk at weight 330, electric mint focus rings, and stacked multi-layer shadows. Shortwave A dark AI-email canvas with Poppins display weight and one electric blue — Inbox rebuilt by the people who built it. Sierra Calm enterprise-AI — light canvas, deep-green hero, GT America, full-pill CTAs. Signal Privacy-first messaging in `#3a76f0` Signal blue with Inter sans — minimal, ad-free, end-to-end-encrypted by default. SKIMS Nude-neutral minimal luxury — cream canvas, dark photographic hero, warm near-black #2d2a26, sharp 0px. Slack Aubergine workspace marketing — Salesforce-Avant-Garde headlines, all-caps 4px CTAs, white canvas with `#4a154b` accents. Snowflake Deeper cyan Solana Solana Gradient + Diatype on near-black — Layer 1 chain marketing as cinematic experiment, magenta-purple-cyan brand prism. SolidJS Deep navy with a blue-to-cyan brand gradient — reactive primitives dressed as a circuit diagram. Sonos Pure black canvas, Inter typography, and audio-system minimalism — speakers presented as gallery objects. SoundCloud Signature `#ff5500` orange on `#f2f2f2` paper with Interstate sans — waveform-first audio social UI. Sourcegraph Near-black code-intelligence canvas — PolySans display, coral-red accent, big quiet headlines. Southwest Airlines Heart-warm low-cost airline — Southwest Sans on light grey, yellow CTA voltage with navy ink, sharp 2px corners. SpaceX Pure-black cinematic photography, D-DIN aerospace stencil type, ghost-button minimalism — the interface disappears. Spotify Electric `#1ed760` green on near-black canvas with Spotify Mix sans — the canonical streaming-audio tile grid. Square Pure black on pure white, Square Sans grids, and retail-POS minimalism — commerce as black-and-white geometry. Stability AI A near-black studio floor where Archivo headlines run light and a single lavender pill carries the only colour. StackBlitz Electric blue `#1574ef` on a graphite `#1c1f25` canvas — the in-browser IDE that built Bolt. Starbucks Forest-green storefront — SoDoSans, full-pill buttons, warm-cream canvas, and a floating Frap CTA the brand calls home. Steam Deep blue-gray `#1b2838` with Motiva Sans — the utilitarian PC-gaming library that runs the world's largest digital storefront. SteelSeries Esports orange `#ff6900` on near-black with Inter — Danish precision peripherals for competitive play. Storybook Open-source frontend workshop — white canvas, Nunito Sans, dark hero band, and the signature coral-pink brand mark. Strava Signature `#fc4c02` orange + Inter on white — endurance-athlete data-driven storefront with map-overlay heritage. Stripe Editorial fintech polish — light Söhne headlines at weight 300, navy-not-black text, signature `#533afd` purple CTAs. Stytch Paper-cream canvas with Booton display + Chivo Mono body — passwordless-modern auth, joined Twilio. Substack Magazine-on-the-internet — Spectral serif body at 19px, Cahuenga display, signature `#ff6719` orange CTAs. Suno A near-black booth with cream Neue Montreal and a hot-pink cue light — a music studio, a record sleeve, and a chat app fused into one canvas. Sunsama Thoughtful daily planning in warm cream and ink — Inter at modest weights over a paper-cream canvas with sage and rose accents and a calm, unhurried voice. Supabase Off-black canvas, signature emerald `#3ecf8e`, Circular as display, Postgres-grade type discipline. Superhuman White paper canvas, a custom Super Sans variable, and a single confident lavender — premium email dressed as a stationery brand. Supreme Box-logo red, Courier monospace, skate-deadpan minimalism — the most influential streetwear store on the web. Svelte Hot orange #ff3e00 against clean white with a confident sans — the framework that wears its flame as a wordmark. Synthesia A white enterprise canvas where Basier Square headlines run near-black navy and a single indigo-blue pill carries every action. T-Mobile T-Mobile magenta (#E20074) dominates a near-white canvas — Un-carrier loudness in TeleNeo display weight. Tailscale Warm-light approachable-technical — off-white canvas, near-black Inter, brick-red accent. Tailwind CSS The system applied to itself — Inter Variable on white canvas, signature cyan #06b6d4, every component built from Tailwind utilities. Tana Pure black canvas, a custom tanaClassic serif at 83px, and a pale-pistachio CTA — a knowledge graph dressed as a literary supplement. Target Bullseye red CTA, Helvetica Neue, photographic hero — friendly mass-market design with confident chromatic restraint. Telegram Cloud-blue messaging — Temporal Near-black engineering canvas, Aeonik at hairline-light 300, signature indigo CTA — durable-execution gravity for distributed-systems people. Tesla Cinematic showroom on white — one Electric Blue CTA, Universal Sans, and viewport-height car photography. The Atlantic Modern serif headlines on cream-paper, signature Atlantic orange `#fbb33b`, long-form magazine reading rendered for the web. The Economist Deep cinnabar red `#e3120b`, Milo serif body, Econ Sans labels — the global-affairs weekly rendered with cover-illustration discipline. The Guardian Guardian Egyptian slab serif, signature navy `#052962`, structured ruled hierarchy with bold section accents. The Home Depot Signature orange on white, Helvetica bold — hardware-aisle signage as a web storefront. The New York Times Cheltenham serif headlines on paper-white, signature breaking-news red, the canonical American broadsheet rendered for the web. The New Yorker Adobe Caslon Pro + Irvin headline cap — a century of editorial gravitas in cream paper, ink black, and signature cartoon line. The Washington Post Postoni serif blackletter masthead, "Democracy Dies in Darkness" tagline, sober ink-on-paper political broadsheet. Things Cool light-blue canvas, system-ui sans, vivid Things-blue accent — a task manager that ships like an Apple Pro Display. Threads Instagram-adjacent text-first social — pure-black canvas, system-sans clarity, and a quiet brand restraint built from the @ glyph alone. TikTok Electric cyan-magenta on pure black — vertical-video voltage with custom Proxima Nova display and a bold neon brand grammar. Tinybird Near-black developer canvas lit by one bright mint-green — managed ClickHouse with sharp, zero-radius CTAs. tldraw Casual whiteboard sketchy — hand-drawn UI primitives, dotted-grid canvas, and a soft pastel palette that wears its toy-like energy with confidence. Todoist Warm-white canvas, Graphik sans, signature Todoist-red CTA — a task manager that feels calm, friendly, and quietly productive. Together AI Deep navy on near-white with Inter sans — open-source LLM cloud rendered as developer-platform infrastructure. Toyota Japanese-reliability mainstream — `#eb0a1e` Toyota red on white, ToyotaType sans, and a calm-confident marketing surface for the world's most-sold automotive brand. Trigger.dev Background jobs in the dark — Satoshi on near-black, one electric lime for action. Turbo Vercel-grade pure-black canvas with a magenta-to-blue Turbo gradient — the build system that wears its speed as a sweep. Turso SQLite at the edge — a deep-teal canvas with a CRT-bright cyan accent (#00face) that reads as a glowing edge node. Twilio Signal-red `#f22f46` against clean white — communications APIs given the visual weight of a broadcast colour. Twitch Purple `#9146ff` on `#0e0e10` canvas with Inter — the live-streaming UI built around chat, raids, and gaming density. Uber Eats Pure-black ground, Uber Move custom sans, Uber-app continuity — the operating system of food delivery. Udemy Signature `#a435f0` purple on white with Sailec sans — the open course-marketplace bazaar made approachable. Udio A pitch-black stage with near-white Innovator display type and a single magenta-pink spotlight — a recording console reimagined as a creative canvas. Uniqlo Signature red `#ff0000`, Helvetica Neue system stack, japanese-utility-functional grid — the LifeWear engine. Uniswap Uniswap Pink on white — DEX design with Basel sans, unicorn-mark whimsy, and rounded-card softness in a usually-brutalist DeFi space. Upstash Serverless data, daylight calm — a pale-grey canvas, deep green-black type, and one electric Upstash green. v0 A near-white prompt canvas with GeistSans and pure OKLCH grayscale — Vercel''s AI builder dressed as the calmest text editor on the internet. Valorant Tactical-shooter design language — Tungsten condensed all-caps, signal-red CTAs, and an off-white text the brand calls "ECE8E1". Vapi Near-black developer canvas lit by a signature lime and a playful multi-color set — Avantt display at 80px over Season Sans body, cream text, r12 CTAs. Venmo A single confident `#3d95ce` blue, Aktiv Grotesk geometry, and a social-feed informality — payments dressed as group chat. Vercel Brutalist developer-product polish — near-white canvas, near-pure black-on-near-white type, Geist sans + mono, conic-gradient accents. Visa Bright-blue + golden-yellow payment-rail confidence — saturated `#1434CB` primary, ceremonial `#FCC015` yellow on hero pill CTAs, pill geometry throughout, custom visa-font-latin in light/regular weights. Vite Electric purple #646cff + Manrope display + a literal lightning-bolt mark — the build tool that designed itself to feel as fast as it is. Vodafone Vodafone Red broadcast band, monumental 144px display, two-tier button system — corporate-newsroom telecom design. Volkswagen People's-car blue — the deep `#001e50` corporate hue, custom VW Sans, and a friendly-German marketing surface that sells everyday mobility with confidence. Vuori Coastal-California performance calm — Aktiv Grotesk on pure white, warm near-black `#333333` ink, restrained small type (28px h1), photography-led, sharp 0px corners. Premium-athletic that never raises its voice. Walmart Spark-yellow on big-box blue, Antonio Display + Bogle sans — everyday low prices made loud. Warby Parker Friendly-premium DTC eyewear — white canvas, bright blue + deep navy, fully pill CTAs. Warp Near-black canvas, neon-lime cursor, real terminal screenshots — a marketing site that boots like a shell. Wayfair Near-white canvas, ink-black type, photographic product cards — editorial-light home retail at marketplace scale. Weaviate White canvas with Inter and a signature `#1cdb46` open-source green — modular vector database dressed in approachable engineering chrome. webdesignhot AI-era editorial dark — pure black with one acid-lime accent. Webflow Indigo-to-purple gradient discipline with a precise structural sans — the visual builder that markets itself like a design conference. WHOOP Lime `#a0d10b` voltage on jet-black, Inter precision, recovery-data athlete-grade aesthetic. Wikipedia System-default information design — Linux Libertine serif headings, Vector skin, deliberate non-branding for the encyclopedia of record. Windsurf Cream `#f6eede` canvas, dark heroes, Tomato Grotesk at light 300, sharp `#34e8bb` mint DOWNLOAD. WIRED Newsstand-density editorial grid, sharp-corner buttons, mono ALL-CAPS kickers — Conde Nast meets engineering lab. Wise A flexible bright-lime green on cream-white — money that travels in sans-serif and a single confident accent. Wispr Flow Pale lemon-cream paper, EB Garamond at 120px, and a lavender download pill — voice dictation that dresses like a literary journal. Workday HR-warm professional in tangerine — Adelle Sans humanist curves, signature `#f37721` orange, and a calm white people-first canvas. WorkOS Pure-white canvas with Untitled Sans 80/500 display + indigo-violet h2 — the B2B-enterprise gravitas aesthetic. X Pure-black canvas with Chirp display — algorithmic minimalism, single-letter wordmark, ruthless type discipline. xAI White canvas, Universal Sans, a stark near-black pill, and warm-grey terminal panels — frontier minimalism. Xbox Xbox Green on near-black, Microsoft's Segoe UI Display dialed to gamer-coded confidence — bold, energetic, Game Pass-first. Y Combinator Brutalist orange monolith — system-font sans on white canvas, signature `#f26625` orange-red blocks with hard 0px corners. You.com Crisp white developer-doc canvas, custom Lumen Sans, and the indigo `#5368EE` accent — a search API rebrand done as enterprise infrastructure. YouTube YouTube Sans + Roboto + signature `#ff0000` red — content-density at planetary scale. Zed Warm paper-light canvas, IBM Plex Serif headlines at light weight, one electric-blue download button — a code editor's site that reads like a typesetter's page. Zoom Zoom Blue `#0B5CFF` on white — geometric sans wordmark, Workplace-era AI Companion friendly-corporate register. Zora Cream-white canvas, electric purple-orange duet, and a custom display — onchain creator network as zine cover.
try on →
theme
mobile · 390 × 844
Tokens webdesignhot/0.1
- bg
#000000 - bg-elevated
#0a0a0c - bg-panel
#1e1e23 - bg-dropdown
rgba(30, 30, 35, 0.8) - surface
#0d0d10 - surface-soft
rgba(255, 255, 255, 0.03) - surface-hover
rgba(255, 255, 255, 0.05) - text AAA · 21.0
#ffffff - text-90
rgba(255, 255, 255, 0.9) - text-80
rgba(255, 255, 255, 0.8) - text-muted
rgba(255, 255, 255, 0.7) - text-60
rgba(255, 255, 255, 0.6) - text-40
rgba(255, 255, 255, 0.4) - text-20
rgba(255, 255, 255, 0.2) - brand AA·LG · 4.2
#0062ff - brand-lighter
#5797ff - brand-dark
#217ce5 - brand-ios
#5966f3 - on-brand
#ffffff - cta-secondary-bg
rgba(255, 255, 255, 0.2) - cta-secondary-text
#ffffff - btn-bg
rgba(255, 255, 255, 0.05) - btn-bg-highlight
rgba(255, 255, 255, 0.06) - accent-red
#fd585b - accent-yellow
#ffb01f - accent-purple
#a770ff - accent-purple-wash
rgba(143, 102, 255, 0.13) - accent-pink
#ff5cab - accent-green
#47b35f - accent-green-wash
rgba(73, 188, 84, 0.10) - super
#00a376 - super-darker
#008761 - super-lighter
#38e2b3 - team
#915eff - team-darker
#7448d4 - team-lighter
#d680ff - bg-pink
#ffe6e6 - bg-greenish
#c1f6e8 - border — · 1.2
rgba(255, 255, 255, 0.1) - border-soft
rgba(255, 255, 255, 0.05) - border-strong — · 1.7
rgba(255, 255, 255, 0.2) - scrim
rgba(0, 0, 0, 0.7) - shadow-glow-blue
rgba(0, 98, 255, 0.4) - success
#47b35f - warning
#ffb01f - danger
#fd585b - info
#5797ff
Ship faster than ever.
display-hero "Spline Sans" 80px w700 -0.03em
Ship faster than ever.
display-lg "Spline Sans" 58px w500 -0.025em
Ship faster than ever.
h1 "Spline Sans" 58px w500 -0.025em
Built for teams that ship.
h2 "Spline Sans" 36px w500 -0.015em
A complete kit
h3 "Spline Sans" 24px w600 -0.005em
The quick brown fox jumps over the lazy dog.
h4 "Spline Sans" 20px w600 0
The quick brown fox jumps over the lazy dog.
h5 "Spline Sans" 18px w600 0
The quick brown fox jumps over the lazy dog.
body-lg "Spline Sans" 18px w400 0
The quick brown fox jumps over the lazy dog.
body "Spline Sans" 16px w400 0
The quick brown fox jumps over the lazy dog.
button-cta "Spline Sans" 15px w600 0
The quick brown fox jumps over the lazy dog.
body-sm "Spline Sans" 14px w400 0
The quick brown fox jumps over the lazy dog.
nav-link "Spline Sans" 14px w500 0
npx @webdesignhot/design-md add stripe
code-inline "Spline Sans Mono" 14px w400 0
OUR DESIGN SYSTEM
label "Spline Sans" 13px w500 0
npx @webdesignhot/design-md add stripe
code-block "Spline Sans Mono" 13px w400 0
OUR DESIGN SYSTEM
caption "Spline Sans" 12px w500 0.02em
The quick brown fox jumps over the lazy dog.
micro "Spline Sans" 11px w600 0.06em
- step-0 0px
- step-1 4px
- step-2 8px
- step-3 12px
- step-4 16px
- step-5 24px
- step-6 32px
- step-7 48px
- step-8 64px
- step-9 96px
- step-10 128px
- micro
2px - sm
4px - md
8px - lg
12px - xl
16px - xxl
24px - pill
9999px
Text link →
Card preview
A complete kit — everything your product needs.
Hero, pricing, FAQ, dashboard, docs — every layout your product needs.
New
Stable
v1.0
Design roles 8/8 mapped · webdesignhot/0.1
Maps the 8 canonical role names to this entry's actual tokens. Use these to plug the design into role-aware tools — shadcn/ui themes, role-aware Tailwind plugins, atelier-lint — without hard-coding token names.
- background → bg
- foreground → text
- primary → brand
- primary-foreground → on-brand
- accent → accent-pink
- muted → text-muted
- border → border
- ring → brand
Spline descends from the lineage of 3D and creative-tool brands that turn their own output into the page — "don't describe the tool, render it." Its specific move is real-time WebGL 3D running in a browser tab, so the homepage literally renders the same engine the user is about to open. Chromatically it sits at an intersection: the true-black, white-opacity-ladder, single-accent discipline of the core chrome is the modern dark-developer-tool vocabulary shared with Linear and Vercel — but Spline breaks that discipline deliberately with a candy-bright multi-color accent set (red, yellow, purple, pink, green) descending from the playful, friendly register of Figma. The result is a hybrid: the seriousness of a pro engineering instrument plus the fun of a creative toy — colder and more void-like than Figma, warmer and more playful than Linear. The studio's own warm-geometric Spline Sans and the plan-tier colors (teal "Super", violet "Team") complete a system that is unmistakably its own.
- True-black, white-opacity-ladder, single-accent dark-tool discipline that governs Spline's core chrome
- Permission to be playful and friendly in a professional design tool — the multi-color, approachable register
- Black-canvas developer-brand minimalism and the conviction that restraint reads as premium
- The sibling "the page is the demo" stance, applied to interactive 2D motion where Spline applies it to 3D
- The WebGL-in-the-browser lineage that makes real-time 3D on a marketing page possible at all
Export
4 formats · paste-ready
Tailwind
theme.extend block for tailwind.config.js
CSS variables
:root { --bg, --text, --brand, … } you can paste anywhere
DTCG JSON
W3C Design Tokens Community Group format
Figma Variables
Importable into Figma → Variables → Import
---
name: Spline
tagline: Pure-black 3D-design canvas with electric-blue CTAs and a playful multi-color accent set — the browser becomes the viewport.
updated_at: 2026-05-29T21:44:44.452Z
published_at: 2026-05-29T21:44:44.452Z
author: webdesignhot
source_url: https://spline.design
spec: webdesignhot/0.1
quality: curated
featured: false
categories: [design-tools]
tags: [dark, sans, playful, creative, bright]
preview_swatch: ['#000000', '#0062ff', '#ff5cab']
related: [rive-app, figma, framer]
description: 'Spline is 3D design in the browser, and the marketing site treats the page itself as a viewport. The canvas is pure black (`#000000`) — not the soft charcoal most dark UIs reach for, but true black, so that rendered 3D scenes and glowing accents read like objects floating in a void. Text is pure white (`#ffffff`), set in the geometric, slightly humanist `Spline Sans` (the studio''s own typeface) with a heroic 58px/500 h1. The signature interaction color is an electric brand BLUE `#0062ff` on a 12px-radius pill (`Get started — it''s free`), backed by a second, quieter CTA that uses a 20%-white translucent fill at a full 50px pill. Around that disciplined core sits a deliberately playful multi-color accent system — red `#fd585b`, yellow `#ffb01f`, purple `#a770ff`, pink `#ff5cab`, green `#47b35f` — that surfaces in 3D scenes, feature illustrations, and category tags. The register is creative-pro: black-void seriousness for the tool, candy-bright accents for the play.'
# Canonical 8-role aliases (bg / text / brand / border / accent / muted / surface / danger).
# Maps role names to this entry's actual token names so role-aware
# downstream tools resolve `theme.background` → entry's `bg`, etc.
# Auto-generated by scripts/add-aliases.mjs — do not edit manually;
# regenerate after changing color token names.
aliases:
background: bg
foreground: text
primary: brand
primary-foreground: on-brand
accent: accent-pink
muted: text-muted
border: border
ring: brand
colors:
bg: '#000000' # true black canvas — a void for floating 3D scenes (--color-bg)
bg-elevated: '#0a0a0c' # barely-lifted panel ground for sectional bands
bg-panel: '#1e1e23' # editor-chrome panel ground (--color-menu-dropdown base)
bg-dropdown: 'rgba(30, 30, 35, 0.8)' # frosted dropdown / menu surface (--color-menu-dropdown cc)
surface: '#0d0d10' # card / surface tile on the black canvas
surface-soft: 'rgba(255, 255, 255, 0.03)' # faintest tile wash (--color-white-001)
surface-hover: 'rgba(255, 255, 255, 0.05)' # surface hover lift (--color-white-003)
text: '#ffffff' # pure white primary text (--color-text-main / --color-white)
text-90: 'rgba(255, 255, 255, 0.9)' # h2 / strong secondary (--color-white-090)
text-80: 'rgba(255, 255, 255, 0.8)' # body-strong (--color-white-080)
text-muted: 'rgba(255, 255, 255, 0.7)' # secondary copy (--color-white-070)
text-60: 'rgba(255, 255, 255, 0.6)' # tertiary copy (--color-white-060)
text-40: 'rgba(255, 255, 255, 0.4)' # captions, faint labels (--color-white-040)
text-20: 'rgba(255, 255, 255, 0.2)' # disabled, placeholder (--color-white-020)
brand: '#0062ff' # signature electric blue — primary CTA + focus (--color-blue)
brand-lighter: '#5797ff' # lifted blue for hover / on-dark links (--color-blue-lighter)
brand-dark: '#217ce5' # pressed / deeper blue (--color-blue-dark)
brand-ios: '#5966f3' # indigo-shifted blue used in iOS-adjacent contexts (--color-blue-ios)
on-brand: '#ffffff' # white label on blue CTA
cta-secondary-bg: 'rgba(255, 255, 255, 0.2)' # translucent white pill — the quieter CTA
cta-secondary-text: '#ffffff' # white label on translucent pill
btn-bg: 'rgba(255, 255, 255, 0.05)' # ghost-button rest fill (--color-btn-bg)
btn-bg-highlight: 'rgba(255, 255, 255, 0.06)' # ghost-button hover fill (--color-btn-bg-highlight)
accent-red: '#fd585b' # playful accent — error/destructive double duty (--color-red)
accent-yellow: '#ffb01f' # playful accent — warning, highlight (--color-yellow)
accent-purple: '#a770ff' # playful accent (bright) — 3D scenes, tags (--color-purple-bright)
accent-purple-wash: 'rgba(143, 102, 255, 0.13)' # 13% purple tint surface (--color-purple)
accent-pink: '#ff5cab' # playful accent — the candy-bright signature (--color-pink)
accent-green: '#47b35f' # playful accent (bright) — success/go (--color-green-bright)
accent-green-wash: 'rgba(73, 188, 84, 0.10)' # 10% green tint surface (--color-green)
super: '#00a376' # "Super" plan teal — premium-tier brand color (--color-super)
super-darker: '#008761' # pressed Super teal (--color-super-darker)
super-lighter: '#38e2b3' # lifted Super teal for on-dark (--color-super-lighter)
team: '#915eff' # "Team" plan violet — collaboration-tier color (--color-team)
team-darker: '#7448d4' # pressed Team violet (--color-team-darker)
team-lighter: '#d680ff' # lifted Team violet for on-dark (--color-team-lighter)
bg-pink: '#ffe6e6' # soft pink illustration ground (--color-bg-pink)
bg-greenish: '#c1f6e8' # soft mint illustration ground (--color-bg-greenish)
border: 'rgba(255, 255, 255, 0.1)' # default hairline on black (--color-white-010)
border-soft: 'rgba(255, 255, 255, 0.05)' # faint divider (--color-white-005)
border-strong: 'rgba(255, 255, 255, 0.2)' # input outline, focus precursor (--color-white-020)
scrim: 'rgba(0, 0, 0, 0.7)' # modal / overlay scrim over the black page
shadow-glow-blue: 'rgba(0, 98, 255, 0.4)' # blue glow under primary CTA / focused scene
success: '#47b35f' # mint-green — "Saved", "Published"
warning: '#ffb01f' # amber — advisory
danger: '#fd585b' # red — destructive / error (shares the playful red)
info: '#5797ff' # lighter blue — informational
typography:
display:
family: '"Spline Sans", system-ui, -apple-system, "Segoe UI", sans-serif'
weights: [500, 600, 700]
body:
family: '"Spline Sans", system-ui, -apple-system, "Segoe UI", sans-serif'
weights: [400, 500, 600]
mono:
family: '"Spline Sans Mono", ui-monospace, SFMono-Regular, "SF Mono", Menlo, monospace'
weights: [400, 500]
scale:
display-hero: { size: 80, weight: 700, lineHeight: 1.0, tracking: '-0.03em', family: display }
display-lg: { size: 58, weight: 500, lineHeight: 1.05, tracking: '-0.025em', family: display }
h1: { size: 58, weight: 500, lineHeight: 1.05, tracking: '-0.025em', family: display }
h2: { size: 36, weight: 500, lineHeight: 1.15, tracking: '-0.015em', family: display }
h3: { size: 24, weight: 600, lineHeight: 1.25, tracking: '-0.005em', family: display }
h4: { size: 20, weight: 600, lineHeight: 1.3, tracking: '0', family: body }
h5: { size: 18, weight: 600, lineHeight: 1.35, tracking: '0', family: body }
body-lg: { size: 18, weight: 400, lineHeight: 1.55, tracking: '0', family: body }
body: { size: 16, weight: 400, lineHeight: 1.55, tracking: '0', family: body }
body-sm: { size: 14, weight: 400, lineHeight: 1.5, tracking: '0', family: body }
label: { size: 13, weight: 500, lineHeight: 1.4, tracking: '0', family: body }
caption: { size: 12, weight: 500, lineHeight: 1.4, tracking: '0.02em', family: body }
button-cta: { size: 15, weight: 600, lineHeight: 1.0, tracking: '0', family: body }
nav-link: { size: 14, weight: 500, lineHeight: 1.0, tracking: '0', family: body }
micro: { size: 11, weight: 600, lineHeight: 1.3, tracking: '0.06em', family: body, transform: uppercase }
code-inline: { size: 14, weight: 400, lineHeight: 1.5, tracking: '0', family: mono }
code-block: { size: 13, weight: 400, lineHeight: 1.6, tracking: '0', family: mono }
radius:
micro: 2
sm: 4
md: 8
lg: 12
xl: 16
xxl: 24
pill: 9999
spacing:
base: 4
scale: [0, 4, 8, 12, 16, 24, 32, 48, 64, 96, 128]
layout:
page-width: 1280
prose-width: 720
header-height: 64
hero-min-height: 680
components:
button-primary:
bg: '#0062ff'
color: '#ffffff'
radius: 12
padding: '12px 20px'
height: 44
font: button-cta
use: 'Get started — it''s free. Electric-blue pill, the single highest-energy element on the black canvas.'
button-primary-hover:
bg: '#217ce5'
color: '#ffffff'
radius: 12
use: 'Hover deepens blue and lifts a soft blue glow (rgba(0,98,255,0.4)) beneath the pill.'
button-secondary:
bg: 'rgba(255, 255, 255, 0.2)'
color: '#ffffff'
radius: 9999
padding: '12px 20px'
height: 44
use: 'Get Started (quieter). Translucent white fill at full 50px pill — recedes behind the blue primary.'
button-ghost:
bg: 'rgba(255, 255, 255, 0.05)'
color: '#ffffff'
border: '1px solid rgba(255, 255, 255, 0.1)'
radius: 8
padding: '10px 16px'
use: 'Tertiary / toolbar actions — faint white wash, hover lifts to 6% white.'
button-text:
bg: 'transparent'
color: 'rgba(255, 255, 255, 0.7)'
use: 'Inline text action — 70% white, brightens to full white on hover.'
card:
bg: '#0d0d10'
color: '#ffffff'
border: '1px solid rgba(255, 255, 255, 0.1)'
radius: 12
padding: '24px'
use: 'Feature / content card — near-black tile with hairline border on the void canvas.'
card-scene:
bg: '#000000'
radius: 16
border: '1px solid rgba(255, 255, 255, 0.08)'
use: 'Embedded 3D scene container — black ground so the rendered object reads as floating.'
panel:
bg: 'rgba(30, 30, 35, 0.8)'
color: '#ffffff'
radius: 12
border: '1px solid rgba(255, 255, 255, 0.1)'
use: 'Editor-chrome panel / dropdown — frosted dark surface, references the actual Spline app UI.'
input:
bg: 'rgba(255, 255, 255, 0.05)'
color: '#ffffff'
border: '1px solid rgba(255, 255, 255, 0.1)'
radius: 8
height: 40
padding: '10px 12px'
focus-ring: '2px solid #0062ff'
use: 'Form input — faint white wash, blue focus ring matches brand.'
badge:
bg: 'rgba(255, 255, 255, 0.08)'
color: 'rgba(255, 255, 255, 0.8)'
radius: 9999
padding: '4px 10px'
font: micro
use: 'Neutral pill — "NEW", "BETA", section eyebrows.'
badge-blue:
bg: 'rgba(0, 98, 255, 0.15)'
color: '#5797ff'
radius: 9999
padding: '4px 10px'
use: 'Brand-tinted pill — "Featured", primary highlight callouts.'
badge-super:
bg: 'rgba(0, 163, 118, 0.15)'
color: '#38e2b3'
radius: 9999
padding: '4px 10px'
use: 'Super-plan pill — teal tint signals the premium tier.'
nav-link:
color: 'rgba(255, 255, 255, 0.7)'
font: nav-link
use: 'Top-bar navigation — 70% white at rest, full white on hover, no underline.'
motion:
ease-standard: 'cubic-bezier(0.4, 0, 0.2, 1)'
ease-emphasized: 'cubic-bezier(0.2, 0, 0, 1)'
ease-spring: 'cubic-bezier(0.34, 1.56, 0.64, 1)' # gentle overshoot for 3D scene reveals
duration-fast: 150
duration-standard: 240
duration-slow: 320
duration-scene: 'variable — driven by individual WebGL 3D scenes (loop / scroll-bound)'
cta-glow: 'blue glow opacity 0 → 0.4 over 150ms on hover'
scene-parallax: '3D scene rotates with cursor / scroll — runtime-driven, pauses on prefers-reduced-motion'
card-hover: 'surface lifts from 3% → 5% white, border brightens 10% → 20% over 240ms'
reduced-motion: 'respects prefers-reduced-motion: reduce — WebGL scenes hold a static frame, parallax disables, transitions become opacity-only'
breakpoints:
mobile: 640
tablet: 1024
desktop: 1280
wide: 1536
shadows:
ambient: 'none — the black canvas absorbs shadow; depth comes from 3D scenes + glow'
glow-blue: 'rgba(0, 98, 255, 0.4) 0 8px 32px — soft halo under the primary blue CTA'
panel: 'rgba(0, 0, 0, 0.6) 0 12px 40px — frosted editor panels lift off the page'
scene-contact: 'rgba(0, 0, 0, 0.5) 0 24px 60px — soft ground shadow under floating 3D objects'
accessibility:
contrast-text-on-bg: 21.0 # #ffffff on #000000 — AAA (maximum)
contrast-text-90-on-bg: 18.9 # 90% white on black — AAA
contrast-muted-on-bg: 13.5 # 70% white on black — AAA
contrast-text-40-on-bg: 5.6 # 40% white on black — AA at body sizes (captions only)
contrast-on-brand: 4.6 # #ffffff on #0062ff blue CTA — AA at ≥18px / bold
contrast-brand-on-bg: 4.5 # #0062ff on black — AA borderline; prefer brand-lighter for text
contrast-brand-lighter-on-bg: 7.0 # #5797ff on black — AAA for text links
focus-ring: '2px solid #0062ff + 2px offset (brand blue)'
reduced-motion-honored: true
touch-target-min: 44
keyboard-nav: 'Tab moves logo → primary nav → Sign in → Get Started CTA → main content → scene cards → footer; Enter/Space activates embedded scene interactions.'
webgl-a11y: 'each embedded 3D scene exposes role="img" with descriptive aria-label; purely decorative scenes are aria-hidden; all pause on prefers-reduced-motion.'
dark-mode: native # Spline is dark-only — true-black canvas is the brand. No light theme is offered on the marketing site.
colors-light:
note: 'No light theme. Spline ships dark-only; the only "light" surfaces are the soft pink (#ffe6e6) and mint (#c1f6e8) illustration grounds inside 3D scene art, never the page chrome.'
lineage:
summary: 'Spline descends from the lineage of 3D and creative-tool brands that turn their own output into the page — "don''t describe the tool, render it." Its specific move is real-time WebGL 3D running in a browser tab, so the homepage literally renders the same engine the user is about to open. Chromatically it sits at an intersection: the true-black, white-opacity-ladder, single-accent discipline of the core chrome is the modern dark-developer-tool vocabulary shared with Linear and Vercel — but Spline breaks that discipline deliberately with a candy-bright multi-color accent set (red, yellow, purple, pink, green) descending from the playful, friendly register of Figma. The result is a hybrid: the seriousness of a pro engineering instrument plus the fun of a creative toy — colder and more void-like than Figma, warmer and more playful than Linear. The studio''s own warm-geometric Spline Sans and the plan-tier colors (teal "Super", violet "Team") complete a system that is unmistakably its own.'
influences:
- { name: Linear, role: 'True-black, white-opacity-ladder, single-accent dark-tool discipline that governs Spline''s core chrome', url: 'https://linear.app' }
- { name: Figma, role: 'Permission to be playful and friendly in a professional design tool — the multi-color, approachable register', url: 'https://figma.com' }
- { name: Vercel, role: 'Black-canvas developer-brand minimalism and the conviction that restraint reads as premium', url: 'https://vercel.com' }
- { name: Rive, role: 'The sibling "the page is the demo" stance, applied to interactive 2D motion where Spline applies it to 3D', url: 'https://rive.app' }
- { name: Three.js, role: 'The WebGL-in-the-browser lineage that makes real-time 3D on a marketing page possible at all', url: 'https://threejs.org' }
---
## 1. Visual Theme & Atmosphere
Spline's marketing surface starts from a decision most dark interfaces flinch away from: the canvas is **true black** (`#000000`), not the soft charcoal (`#0d0d12`, `#111`, `#18181b`) that Linear, Vercel, and almost every other dark-mode developer brand reach for to soften the screen. The reason is functional. Spline is a 3D design tool, and a true-black ground turns the page into a **viewport** — a void in which rendered WebGL scenes, glowing objects, and saturated accents read as physical things floating in space rather than as UI elements pasted onto a panel. The black isn't a mood; it's a stage.
Against that void, the type is pure white (`#ffffff`) set in **Spline Sans** — the studio's own typeface, a geometric sans with just enough humanist warmth in the terminals to avoid feeling cold or technical. The hero runs at a confident 58px / weight 500 with `-0.025em` tracking; notably, Spline keeps its display weight at **medium (500), not bold (700)**, which gives the headlines an airy, gallery-label quality rather than a shouty SaaS-hero feel. The lightness of the display weight against the heaviness of the black ground is the core tension of the whole system.
The single highest-energy element on the page is the primary CTA: an **electric blue** (`#0062ff`) pill at 12px radius reading "Get started — it's free." On a black canvas, that blue glows. It is the brand's one permission to be loud, and it is rationed — most of the page is white-on-black with translucent-white chrome, so the blue CTA pulls the eye like a single lit window. A second, quieter CTA sits beside it using a 20%-white translucent fill at a full 50px pill, deliberately receding so the hierarchy between "primary action" and "alternate action" is unmistakable.
Around that disciplined monochrome-plus-blue core sits a deliberately **playful multi-color accent system** — red `#fd585b`, yellow `#ffb01f`, purple `#a770ff`, pink `#ff5cab`, green `#47b35f`. These are candy-bright, almost toy-like, and they appear in the 3D scenes, feature illustrations, category tags, and plan badges (the "Super" tier owns a teal `#00a376`, the "Team" tier a violet `#915eff`). The register Spline lands on is **creative-pro**: black-void seriousness for the tool itself, candy-bright accents for the play of creation. It says "this is a professional instrument" and "making things here is fun" in the same breath — which is exactly the dual promise of a 3D editor that runs in a browser tab.
The net effect is a page that feels like an *application* more than a brochure. Frosted dark panels (`rgba(30,30,35,0.8)`) borrowed straight from the editor chrome appear in feature sections; embedded scenes rotate with the cursor; the blue CTA carries a soft halo. Where Rive makes its page *the demo* through 2D runtime animation, Spline makes its page *the viewport* through 3D rendering — same conviction (show, don't tell), different dimension.
**Key Characteristics:**
- True-black canvas (`#000000`) — a void, not a softened charcoal — so 3D scenes read as floating objects
- Pure-white type (`#ffffff`) in the studio's own **Spline Sans**, hero at 58px / weight **500** (airy, not shouty)
- One electric-blue CTA (`#0062ff`, 12px radius) as the single loud element — rationed and glowing
- A quieter secondary CTA in 20%-translucent white at a full 50px pill — clear two-tier action hierarchy
- Playful multi-color accent set (red / yellow / purple / pink / green) reserved for 3D scenes, tags, and illustration
- Plan-tier colors: Super = teal `#00a376`, Team = violet `#915eff`
- Translucent-white chrome (`#ffffff0d`, `#ffffff14`) for ghost buttons, panels, dividers — depth via opacity, not shadow
- Frosted editor-style panels (`rgba(30,30,35,0.8)`) that reference the actual app UI
- Depth comes from 3D rendering + soft glows, never from drop-shadow stacks
- Compact radius scale (12px default, 8px controls) — modern-app, not pill-everything
## 2. Color Palette & Roles
### Primary
- **Canvas Black** (`#000000`) [→ `--color-bg`]: true-black page ground — the void that makes 3D scenes float
- **Elevated** (`#0a0a0c`): barely-lifted band ground for sectional rhythm without breaking the void
- **Surface** (`#0d0d10`): near-black card / tile ground on the canvas
- **Text White** (`#ffffff`) [→ `--color-text-main`, `--color-white`]: primary text and the on-blue CTA label
### Brand
- **Brand Blue** (`#0062ff`) [→ `--color-blue`]: signature electric blue — primary CTA fill, focus ring, the one loud color
- **Blue Lighter** (`#5797ff`) [→ `--color-blue-lighter`]: lifted blue for hover, on-dark text links, info
- **Blue Dark** (`#217ce5`) [→ `--color-blue-dark`]: pressed / deeper blue on CTA active
- **Blue iOS** (`#5966f3`) [→ `--color-blue-ios`]: indigo-shifted blue used in platform-adjacent contexts
### Accent (playful, scene/tag-only)
- **Red** (`#fd585b`) [→ `--color-red`]: candy red — scene fills, category tags, doubles as danger
- **Yellow** (`#ffb01f`) [→ `--color-yellow`]: warm amber — scene highlights, doubles as warning
- **Purple Bright** (`#a770ff`) [→ `--color-purple-bright`]: bright violet — scene fills and tags
- **Purple Wash** (`rgba(143,102,255,0.13)`) [→ `--color-purple`]: 13% violet tint for soft surfaces
- **Pink** (`#ff5cab`) [→ `--color-pink`]: the candy-bright signature accent — illustration and tag highlights
- **Green Bright** (`#47b35f`) [→ `--color-green-bright`]: bright mint-green — success, "go", scene fills
- **Green Wash** (`rgba(73,188,84,0.10)`) [→ `--color-green`]: 10% green tint for soft surfaces
- **Super Teal** (`#00a376`) [→ `--color-super`]: "Super" plan tier color — premium-tier branding
- **Team Violet** (`#915eff`) [→ `--color-team`]: "Team" plan tier color — collaboration-tier branding
### Interactive
- **CTA Blue** (`#0062ff`): primary action fill; hover → Blue Dark (`#217ce5`); glow lifts on hover
- **CTA Translucent** (`rgba(255,255,255,0.2)`): secondary action fill — recedes behind blue
- **Ghost Fill** (`rgba(255,255,255,0.05)`) [→ `--color-btn-bg`]: tertiary button rest state
- **Ghost Hover** (`rgba(255,255,255,0.06)`) [→ `--color-btn-bg-highlight`]: tertiary button hover lift
- **Link** (`rgba(255,255,255,0.7)`): default text link — brightens to full white or blue-lighter on hover
- **Focus Ring** (`#0062ff`): brand blue 2px ring on all interactive elements
### Neutral Scale (white-on-black opacity ladder)
- **White 100** (`#ffffff`) — primary text, full strength
- **White 90** (`rgba(255,255,255,0.9)`) [→ `--color-white-090`] — h2, strong secondary
- **White 80** (`rgba(255,255,255,0.8)`) [→ `--color-white-080`] — body-strong, badge text
- **White 70** (`rgba(255,255,255,0.7)`) [→ `--color-white-070`] — secondary copy, nav links
- **White 60** (`rgba(255,255,255,0.6)`) [→ `--color-white-060`] — tertiary copy
- **White 40** (`rgba(255,255,255,0.4)`) [→ `--color-white-040`] — captions, faint labels
- **White 20** (`rgba(255,255,255,0.2)`) [→ `--color-white-020`] — disabled, placeholder, secondary-CTA fill
- **White 10** (`rgba(255,255,255,0.1)`) [→ `--color-white-010`] — default borders
- **White 08** (`rgba(255,255,255,0.08)`) [→ `--color-white-008`] — badge fill, faint surface
- **White 05** (`rgba(255,255,255,0.05)`) [→ `--color-white-005`] — ghost-button fill, soft divider
- **White 03** (`rgba(255,255,255,0.03)`) [→ `--color-white-003`] — barely-there surface wash
- **White 01** (`rgba(255,255,255,0.01)`) [→ `--color-white-001`] — faintest possible tile wash
### Surface & Borders
- **Surface** (`#0d0d10`) — default card tile ground
- **Scene Container** (`#000000`) — black ground inside 3D scene frames so objects float
- **Panel** (`rgba(30,30,35,0.8)`) [→ `--color-menu-dropdown`] — frosted editor-chrome panel / dropdown
- **Border** (`rgba(255,255,255,0.1)`) — default hairline
- **Border Soft** (`rgba(255,255,255,0.05)`) — faint section divider
- **Border Strong** (`rgba(255,255,255,0.2)`) — input outline, focus precursor
- **Illustration Pink Ground** (`#ffe6e6`) [→ `--color-bg-pink`] — soft pink ground inside scene art only
- **Illustration Mint Ground** (`#c1f6e8`) [→ `--color-bg-greenish`] — soft mint ground inside scene art only
### Shadow / Glow Colors
Spline is almost entirely flat — the black canvas absorbs conventional drop shadows, so depth comes from 3D rendering and **glow** instead. The CTA carries a blue halo; frosted panels lift on a deep black shadow; floating objects cast a soft ground contact shadow.
- `rgba(0,98,255,0.4) 0 8px 32px` — blue glow under the primary CTA on hover
- `rgba(0,0,0,0.6) 0 12px 40px` — deep shadow lifting frosted editor panels
- `rgba(0,0,0,0.5) 0 24px 60px` — soft ground contact shadow under floating 3D objects
### Semantic
- **Success** (`#47b35f`): "Saved", "Published", "Up to date" — the same bright green from the accent set
- **Warning** (`#ffb01f`): advisory banners — the warm amber accent
- **Danger** (`#fd585b`): destructive / error states — the candy red does double duty
- **Info** (`#5797ff`): informational banners — the lighter blue, easier on black than full brand blue
## 3. Typography Rules
### Font Family
**Display & Body**: `"Spline Sans"`. Fallback chain: `system-ui, -apple-system, "Segoe UI", sans-serif`. Spline Sans is the studio's own geometric humanist sans (open-sourced and available on Google Fonts) — round, friendly bowls with subtly humanist terminals that keep it from reading as a cold geometric. Spline uses a single typeface across display and body, which is part of what makes the brand feel like one cohesive application rather than a marketing site stitched from disparate parts.
**Mono**: `"Spline Sans Mono"` (the matching monospaced cut) for code samples, dimension readouts, and API snippets. Fallback chain: `ui-monospace, SFMono-Regular, "SF Mono", Menlo, monospace`. The mono cut shares the family's roundness so code blocks feel native to the brand rather than bolted on.
**The medium-weight signature**: the most distinctive typographic choice is that **display sizes use weight 500, not 700**. The 58px hero renders at medium weight, giving headlines an airy, gallery-label quality. Bold (600/700) is reserved for smaller subheads and UI labels where extra weight aids legibility at scale. This inverts the usual SaaS convention (heavy hero, light body) and is a large part of why Spline reads as premium-creative rather than loud-startup.
### Hierarchy
| Role | Font | Size | Weight | Line Height | Letter Spacing | Notes |
|------|------|------|--------|-------------|----------------|-------|
| display-hero | Spline Sans | 80 | 700 | 1.0 | -0.03em | Largest marketing splash — campaign pages |
| display-lg / h1 | Spline Sans | 58 | 500 | 1.05 | -0.025em | Homepage hero — airy medium weight (the signature) |
| h2 | Spline Sans | 36 | 500 | 1.15 | -0.015em | Section openers — 90% white (`#ffffffe6`) |
| h3 | Spline Sans | 24 | 600 | 1.25 | -0.005em | Card titles, sub-section heads |
| h4 | Spline Sans | 20 | 600 | 1.3 | 0 | Feature card headlines |
| h5 | Spline Sans | 18 | 600 | 1.35 | 0 | Tile heads, eyebrow + title pairs |
| body-lg | Spline Sans | 18 | 400 | 1.55 | 0 | Lead paragraphs, hero sub-copy |
| body | Spline Sans | 16 | 400 | 1.55 | 0 | Default body |
| body-sm | Spline Sans | 14 | 400 | 1.5 | 0 | Card descriptions, secondary copy |
| label | Spline Sans | 13 | 500 | 1.4 | 0 | Form labels, small UI text |
| caption | Spline Sans | 12 | 500 | 1.4 | 0.02em | Footer fine print, faint metadata |
| button-cta | Spline Sans | 15 | 600 | 1.0 | 0 | Primary CTA labels |
| nav-link | Spline Sans | 14 | 500 | 1.0 | 0 | Top-bar navigation, 70% white |
| micro | Spline Sans | 11 | 600 | 1.3 | 0.06em (uppercase) | "NEW", "BETA" badges, eyebrows |
| code-inline | Spline Sans Mono | 14 | 400 | 1.5 | 0 | Inline `<code>` in body |
| code-block | Spline Sans Mono | 13 | 400 | 1.6 | 0 | Code samples, API snippets |
### Principles
- **One family, display through body.** Spline Sans covers everything; cohesion over contrast. The monospaced cut (`Spline Sans Mono`) is the only sibling, reserved for code.
- **Medium (500) for display, not bold.** The 58px hero at weight 500 is the typographic signature — airy and gallery-like. Don't bump display to 700 by default.
- **Bold climbs as size drops.** Weight 600/700 appears at h3 and below, where smaller type benefits from extra weight for legibility — the inverse of the hero treatment.
- **Negative tracking scales with size.** `-0.025em` to `-0.03em` at hero scale, easing to `0` by body. Tighten display to read as a unified word-mark, never spaced.
- **White opacity ladder for hierarchy, not gray.** Secondary text is white at reduced opacity (90 / 80 / 70 / 60 / 40%), never a separate gray hex — this keeps every shade chromatically neutral against the true-black ground.
- **Line height loosens for reading.** Display sits tight (1.0–1.15); body opens to 1.55 for comfortable reading on a dark ground, where loose leading reduces eye strain.
- **Spline Sans Mono for technical context.** Dimensions, coordinates, code, and API tokens use the mono cut to signal "this is a real tool with real parameters."
## 4. Component Stylings
### Buttons
**`button-primary`** — electric-blue (`#0062ff`) fill, white (`#ffffff`) label in 15/600, **12px radius** (not a full pill), ~12×20px padding, 44px height. The single highest-energy element on the page: "Get started — it's free." On hover the fill deepens to `#217ce5` and a soft blue glow (`rgba(0,98,255,0.4) 0 8px 32px`) lifts beneath the pill. Active presses to ~0.97 scale for 100ms.
**`button-secondary`** — translucent white fill (`rgba(255,255,255,0.2)`), white label, **full 50px pill radius** (9999). Deliberately a different shape from the primary so the two read as distinct tiers: blue-rounded-rect = "do this," translucent-pill = "or this." Hover brightens the fill toward 28% white.
**`button-ghost`** — faint white wash (`rgba(255,255,255,0.05)`), 1px 10%-white border, white label, 8px radius, ~10×16px padding. Toolbar and tertiary actions. Hover lifts the fill to 6% white (`--color-btn-bg-highlight`). This is the workhorse for in-product-style chrome on the marketing site.
**`button-text`** — no surface, no border, 70%-white label (`rgba(255,255,255,0.7)`). Brightens to full white on hover. Used for inline "Learn more" and footer-style actions.
### Cards
**`card`** — near-black surface (`#0d0d10`), 12px radius, 1px 10%-white hairline border, 24px padding. The default content tile. On hover the surface lifts from 3% → 5% white and the border brightens from 10% → 20% over 240ms — a quiet "this is interactive" cue with no movement of the box itself.
**`card-scene`** — true-black (`#000000`) ground, 16px radius, 1px 8%-white border. The defining card type: wraps an embedded WebGL 3D scene. The black ground (matching the page) makes the rendered object read as *floating in the card* rather than sitting on a tile. The scene often rotates with the cursor inside this frame.
**`panel`** — frosted dark surface (`rgba(30,30,35,0.8)` with backdrop-blur), 12px radius, 1px 10%-white border. References the actual Spline editor chrome — used in feature sections that show off the app's panels, layers, and property inspectors. Lifts on a deep black shadow (`rgba(0,0,0,0.6) 0 12px 40px`).
### Badges, Tags, Pills
**`badge`** — 8%-white fill, 80%-white text in 11/600/uppercase/0.06em, full pill, ~4×10px padding. Neutral utility pill for "NEW", "BETA", section eyebrows.
**`badge-blue`** — 15% brand-blue fill (`rgba(0,98,255,0.15)`), blue-lighter text (`#5797ff`), full pill. Brand-tinted callout for "Featured" or primary highlights.
**`badge-super`** — 15% Super-teal fill, teal-lighter text (`#38e2b3`). Signals the premium "Super" plan tier. **`badge-team`** does the same in Team violet (`#915eff` / `#d680ff`). The accent set also surfaces as category tags inside the templates gallery (a red tag, a pink tag, a green tag), where the playful palette gets its fullest expression.
### Inputs / Forms
**`input`** — faint white wash (`rgba(255,255,255,0.05)`), 1px 10%-white border, 8px radius, 40px height, ~10×12px padding, white text. Placeholder at 20% white. On focus the border becomes 2px brand blue (`#0062ff`) — matching the CTA and focus-ring color throughout.
**`form-label`** — stacked above input in 13/500 at 80% white. Required-field marker is a small red asterisk (`#fd585b`).
### Navigation
**`top-bar`** — full-width true-black bar, 64px height, no border at rest (a faint 10%-white bottom hairline appears on scroll). Logo flush left. Primary nav centred or left-grouped ("Product", "Templates", "Pricing", "Resources", "Community"). "Sign in" text action + blue "Get started" CTA flush right.
**`nav-link`** — 14/500 at 70% white (`rgba(255,255,255,0.7)`), brightening to full white on hover. No underline; the brightness shift carries the affordance.
**`mobile-nav`** — full-screen black takeover at <768px. Stacked nav links at 20/500 white, the blue CTA pinned at the bottom.
## 5. Layout Principles
### Spacing System
- Base unit: **4px**
- Scale: `0 · 4 · 8 · 12 · 16 · 24 · 32 · 48 · 64 · 96 · 128`
- Section padding (vertical): **96–128px** between major bands; the hero claims extra breath at the top of the page
- Card internal padding: **24px** standard, **32px** for feature tiles
- Gutters: **16–24px** between cards in grid view
### Grid & Container
- Max content width: **1280px** centred — modern-app moderate, not sprawling
- Reading prose width: **720px** for docs, changelog, and blog surfaces
- Header height: **64px** — compact, app-like
- Hero: often a centred display headline + dual CTA over a full-bleed 3D scene that occupies the background or right region
- Feature grids: 2- or 3-column at desktop, each tile holding an embedded scene or app screenshot
- Footer: multi-column link list on the black canvas with faint dividers
### Whitespace Philosophy
The black canvas *is* the whitespace. Where a light site uses generous margins of paper to give content room, Spline uses expanses of pure black void — which reads as even more spacious because there is no surface texture at all. Content floats in this void with deliberate breathing room; the 3D scenes need negative space around them to feel like objects rather than crowded UI. The discipline is to resist filling the void: one scene, one headline, one blue CTA per viewport is the rhythm.
### Section Cadence
Sections alternate between **pure-black bands** (default, most content) and occasional **barely-elevated bands** (`#0a0a0c`) that lift just enough to delineate a region without breaking the void. Feature sections often pair a frosted editor-panel demo on one side with copy on the other. The templates / community gallery is where the full playful accent palette appears — a grid of scene cards each glowing a different candy hue against the black. The overall flow is monochrome-disciplined-then-colorful-release: long stretches of white-on-black build restraint, then a gallery section releases the full rainbow.
## 6. Shapes & Radius Scale
| Tier | Value | Use |
|------|-------|-----|
| Micro | 2px | Code-block corners, dense table cells, tiny chips |
| Small | 4px | Tight controls, inner input elements, color swatches |
| Standard | 8px | Inputs, ghost buttons, dropdown items — the control radius |
| Comfortable | 12px | Default card, primary CTA, panel — the brand's signature radius |
| Large | 16px | Scene containers, feature tiles, modals |
| Featured | 24px | Large hero scene frames, oversized feature cards |
| Pill | 9999px | Badges, the translucent secondary CTA, toggles |
The defining tension: the **primary CTA uses 12px, not a full pill**, while the **secondary CTA uses a full 50px pill**. This split is intentional — the rounded-rect primary reads as a solid "button," the pill secondary as a softer "option." Controls (inputs, ghost buttons) sit one notch tighter at 8px to read as precise, tool-like elements. There are no compound radii in mainline UI; every element rounds uniformly.
## 7. Depth & Elevation
| Level | Treatment | Use |
|-------|-----------|-----|
| 0 — Flat | no shadow, sits on black | Body, most cards, masthead, footer (~90% of surfaces) |
| 1 — Hairline | 1px 10%-white border | Cards, panels, inputs, dividers |
| 2 — Surface lift | 3% → 5% white fill + border 10% → 20% on hover | Interactive card hover |
| 3 — Glow | `rgba(0,98,255,0.4) 0 8px 32px` | Primary CTA on hover, focused scenes |
| 4 — Panel | `rgba(0,0,0,0.6) 0 12px 40px` + backdrop-blur | Frosted editor panels, dropdowns, modals |
| 5 — Scene contact | `rgba(0,0,0,0.5) 0 24px 60px` | Soft ground shadow under floating 3D objects |
### Shadow Philosophy
**On a true-black canvas, conventional drop shadows are invisible** — a black shadow on a black ground does nothing. So Spline rethinks elevation entirely. Depth at the surface level comes from **opacity** (a brighter white wash or border reads as "closer"). Depth at the hero level comes from **glow** (the blue CTA halo, the lit edges of a 3D object) and from **actual 3D rendering** (the scene has real depth, real perspective, a real ground shadow rendered by the WebGL runtime). The only black-on-black shadows that work are the deep, large-blur kind used to lift frosted panels and floating objects — and even those rely on the panel itself being lighter than the void. The brand position: in a black void, light is the only currency of depth. You don't cast shadows down; you emit light up.
## 8. Interaction & Motion
### Easing
- **Standard**: `cubic-bezier(0.4, 0, 0.2, 1)` — default for hover, focus, opacity transitions
- **Emphasized**: `cubic-bezier(0.2, 0, 0, 1)` — modal entry, panel reveals, section transitions
- **Spring**: `cubic-bezier(0.34, 1.56, 0.64, 1)` — gentle overshoot for 3D scene reveals and toggle snaps
- **Scene runtime**: each embedded WebGL scene runs its own timing — Spline doesn't impose a single curve on live 3D
### Durations
| Bucket | Value | Use |
|--------|-------|-----|
| Fast | 150ms | Hover color/opacity swap, focus ring, CTA glow fade-in |
| Standard | 240ms | Card hover, surface lift, dropdown open |
| Slow | 320ms | Section reveal on scroll, modal enter, panel slide |
| Scene | variable | WebGL scenes loop or bind to scroll / cursor |
### Per-Component Recipes
- **CTA hover**: fill `#0062ff` → `#217ce5` over 150ms; blue glow opacity 0 → 0.4 over 150ms; arrow icon (when present) slides 3px right.
- **CTA press**: scale 1.0 → 0.97 over 100ms, reverts on release.
- **Card hover**: surface fill 3% → 5% white, border 10% → 20% white over 240ms standard; box does not move.
- **Scene parallax**: embedded 3D scene rotates / shifts with cursor position and scroll, runtime-driven; pauses on `prefers-reduced-motion: reduce`.
- **Nav link**: opacity 70% → 100% white over 150ms; no underline.
- **Dropdown / panel**: frosted panel enters with `translateY(8px) opacity(0)` → `0 / 1` over 240ms emphasized + backdrop-blur fade-in.
- **Section reveal**: feature blocks fade-in + `translateY(16px → 0)` over 320ms emphasized on scroll-into-view.
- **Modal**: scrim (`rgba(0,0,0,0.7)`) fades in over 200ms; dialog springs in with gentle overshoot.
### Page Transitions
Standard hard navigation between pages — Spline prioritizes perceived speed and lets links behave as links. The motion lives *inside* pages (3D scenes, scroll-bound reveals), not between them.
### Reduced Motion
Respects `prefers-reduced-motion: reduce`. All WebGL scenes hold a static representative frame (no loop, no cursor parallax). Section reveals and card scales drop to opacity-only or instant. The CTA glow still appears (it's a state, not motion) but its fade is shortened. The reduced-motion experience preserves the brand fully — true-black canvas, Spline Sans, blue CTA, candy accents — with only the kinetic 3D layer stilled.
## 9. Accessibility & A11y
### Contrast Pairs
| Pair | Ratio | Level |
|------|-------|-------|
| #ffffff text on #000000 canvas | 21.0 | AAA (maximum possible) |
| 90% white on #000000 | 18.9 | AAA |
| 80% white on #000000 | 16.4 | AAA |
| 70% white (nav, secondary) on #000000 | 13.5 | AAA |
| 40% white (captions) on #000000 | 5.6 | AA at body sizes |
| 20% white (disabled) on #000000 | 2.6 | Decorative / disabled only — not for text |
| #ffffff on #0062ff (blue CTA) | 4.6 | AA at ≥18px or bold (the 15/600 label qualifies) |
| #0062ff brand blue on #000000 | 4.5 | AA borderline — use brand-lighter for blue *text* |
| #5797ff blue-lighter on #000000 | 7.0 | AAA — preferred for blue text links on black |
The white-on-black core is maximally accessible (21:1, the highest ratio achievable). The two things to watch: (1) the on-blue CTA label clears AA only at large/bold sizes, so keep CTA labels ≥15px/600 — which the system does; and (2) full brand blue as *text* on black is borderline, so links use the lighter blue (`#5797ff`, 7.0:1 AAA) while the solid blue is reserved for CTA *fills*.
### Focus Indicators
Focus ring is **2px solid brand blue (`#0062ff`)** with 2px offset on `:focus-visible`. Buttons, inputs, links, and interactive scenes all gain the blue ring. On the black canvas the blue ring has strong visibility, and it doubles as a brand signal — the same blue as the CTA.
### ARIA Patterns
- **Embedded 3D scene**: each WebGL scene exposes `role="img"` with descriptive `aria-label` ("Interactive 3D scene — abstract glass orb"). Purely decorative background scenes are `aria-hidden="true"` to avoid screen-reader noise.
- **Primary CTA**: `aria-label` names the destination ("Get started — opens sign-up flow").
- **Frosted panels / dropdowns**: `role="menu"` / `role="dialog"` with `aria-modal` and focus trap as appropriate.
- **Templates gallery cards**: wrapped in `<a>` with `aria-label` describing the template.
- **Mobile nav**: `role="dialog"`, `aria-modal="true"`, Escape to close, focus trap.
### Keyboard Navigation
- Tab order: skip-link → logo → primary nav → Sign in → Get Started CTA → main content → scene/template cards → footer
- Enter/Space activates a card or an embedded scene's primary interaction
- Escape closes the mobile drawer, any modal, or any open dropdown
- Arrow keys cycle items within the templates gallery and any carousel
### Screen Reader Hints
Verbose `aria-label` on every meaningful 3D scene; decorative scenes are hidden. Plan-tier badges announce the tier name ("Super plan", "Team plan") rather than just the color. Dimension/coordinate mono readouts inside product demos are marked decorative when they're illustrative rather than functional.
### Reduced Motion
WebGL scenes hold a static frame; cursor parallax and scroll-bound 3D disable; section reveals and hover scales degrade to opacity-only or instant. The brand identity (canvas, type, blue CTA, accents) is fully preserved with the kinetic layer stilled — essential for a tool whose entire premise is motion and 3D.
## 10. Responsive Behavior
### Breakpoints
| Name | Width | Key Changes |
|------|-------|-------------|
| Mobile | <640px | Hero stacks; display drops to ~36/500; nav → full-screen black drawer; cards 1-up; 3D scenes simplify or static |
| Tablet | 640–1024px | Hero stays mostly vertical, display ~44/500; cards 2-up; scenes retained |
| Desktop | 1024–1280px | Full hero with background/side 3D scene; cards 2- or 3-up |
| Wide | 1280–1536px | Content caps at 1280px; cards 3-up; scenes get maximum stage |
### Touch Targets
- Primary / secondary CTAs: 44px height — meets AA
- Ghost buttons: 40px (with padding to a 44px tap area)
- Nav links: 44px tap area around the visible text
- Template / scene cards: entire tile is tappable
- Embedded scenes are pointer-event aware on touch — tap-and-drag rotates the 3D object
### Collapsing Strategy
- **Hero**: side-by-side copy + scene → stacked; 3D scene moves to background or below copy
- **Display scale**: ~58 → ~44 → ~36 across desktop → tablet → mobile
- **Feature grids**: 3-up → 2-up → 1-up
- **Top-bar nav**: collapses to a hamburger drawer; the blue CTA persists in the bar
- **3D scenes**: heavy WebGL scenes may swap to a static poster image on low-power mobile to protect performance
### Image / Scene Behavior
Embedded 3D scenes use `aspect-ratio` containers and the WebGL canvas scales to fit, resampling cleanly to retina. Where a scene is too heavy for a device, a static poster (a rendered frame of the same scene) stands in. Illustration art with the soft pink / mint grounds maintains native aspect ratio.
### Container Queries
Used inside template cards: when a card narrows below ~280px, its metadata (title, category tag) shifts beneath the scene thumbnail instead of overlaying it.
## 11. Content & Voice
### Tone
Creative, confident, approachable-technical. Spline's voice is "the pro 3D tool that's actually fun to use" — it speaks to designers and creators without enterprise stiffness, but with the credibility of a real engine under the hood. Headlines favor direct capability statements ("3D design, in the browser", "Design 3D, collaborate in real time") over abstract aspiration. The "— it's free" tag on the primary CTA is characteristic: warm, low-friction, inviting rather than transactional.
### Microcopy Patterns
- **Button verbs**: "Get started — it's free", "Get Started", "Try Spline", "Open Editor", "Browse Templates", "Start designing" — inviting and outcome-named
- **Error recipe**: short and plain — "Couldn't load this scene. Check your connection and try again."
- **Success confirmations**: brief — "Saved", "Published", "Copied to clipboard"
- **Field labels**: minimal — "Email", "Project name", "Workspace"
- **Empty states**: encouraging — "No projects yet. Create your first scene to get started."
### Empty States
Empty workspace: "Start from a template or open a blank scene." — names two destinations.
Empty templates / community: "Nothing here yet — browse the community gallery for inspiration." — offers a next step.
Empty search: "No results for '[query]'. Try different keywords or browse by category." — explains plus offers an alternative.
### CTA Verb Conventions
- Primary: **"Get started — it's free"** (hero default), **"Get Started"** (compact), **"Try Spline"** (feature-adjacent), **"Open Editor"** (existing user)
- Secondary: **"Browse Templates"**, **"Watch Demo"**, **"See Examples"**, **"Learn More"**
- Tertiary text: **"Explore"**, **"Discover"**, **"View all"**
The brand leans on "free" and "start" to lower the barrier — the tool's whole pitch is "open a tab and start making 3D," and the copy mirrors that frictionlessness.
## 12. Dark Mode & Theming
Spline is **dark-only by design**. The true-black canvas is not a dark *mode* — it is the brand. There is no light-theme toggle on the marketing site, and there shouldn't be: the entire system (3D scenes floating in a void, glow-based depth, white-opacity hierarchy, the lit blue CTA) is built on the premise of a black ground. A light theme would invert the conceptual model — objects would sit *on* a surface rather than float *in* a void — and break the brand.
The only "light" surfaces anywhere in the system are the soft **pink (`#ffe6e6`)** and **mint (`#c1f6e8`)** grounds that appear *inside* 3D scene artwork and illustrations — never as page chrome. They are content, not theme. If you must produce a light variant for an embedded or co-branded context, treat it as a separate brand expression, not a token swap: re-derive depth from real drop shadows (which become visible on light grounds), pull the white-opacity ladder to a black-opacity ladder, and keep the blue CTA and candy accents intact as the throughline.
## 13. Lineage & Influences
Spline's marketing surface descends from the lineage of **3D and creative-tool brands that turn their own output into the page**. The conviction — "don't describe the tool, render it" — is the same one Rive applies to 2D motion and that game-engine and creative-coding brands have used for years: the homepage *is* a viewport into the product. Spline's specific contribution is taking that into real-time WebGL 3D running in a browser tab, so the page literally renders the same engine the user is about to open.
Chromatically and structurally, Spline sits at an intersection. The **true-black, white-opacity, single-accent discipline** of the core UI is the modern dark-developer-tool vocabulary shared with **Linear** and **Vercel** — but where those brands stop at one cool accent and stay austere, Spline breaks discipline deliberately with a **candy-bright multi-color accent set** (red / yellow / purple / pink / green) that descends from the playful, friendly register of **Figma** and the creative-community energy of design-asset marketplaces. The result is a hybrid: the seriousness of a pro engineering tool plus the fun of a creative toy. The plan-tier colors (teal "Super", violet "Team") and the studio's own warm-geometric **Spline Sans** complete a system that is unmistakably its own — colder and more void-like than Figma, warmer and more playful than Linear.
**Influences:**
- **Linear** — the true-black / white-opacity-ladder / single-accent dark-tool discipline that governs Spline's core chrome
https://linear.app
- **Figma** — permission to be playful and friendly in a professional design tool; the multi-color, approachable register
https://figma.com
- **Vercel** — black-canvas developer-brand minimalism and the conviction that restraint reads as premium
https://vercel.com
- **Rive** — the sibling "the page is the demo" stance, applied to interactive 2D motion where Spline applies it to 3D
https://rive.app
- **Three.js** — the WebGL-in-the-browser lineage that makes real-time 3D on a marketing page possible at all
https://threejs.org
What Spline **rejects**: soft charcoal "comfortable dark" grounds (it commits to true black), drop-shadow elevation systems (invisible on black — it uses glow and 3D instead), static screenshots as the dominant asset (it renders live scenes), and single-accent austerity (it keeps the playful rainbow). The rejections are what let Spline read as a creative *instrument* rather than another austere dev tool.
## 14. Do's and Don'ts
### Do
- **Do** commit to true black (`#000000`) for the canvas. The void is the brand — it's what makes 3D scenes float.
- **Do** keep the primary CTA electric blue (`#0062ff`) at 12px radius. It's the one loud element; let it glow.
- **Do** give the secondary CTA a different shape (translucent white, full pill) so the two action tiers read distinctly.
- **Do** build hierarchy from the white-opacity ladder (90 / 80 / 70 / 60 / 40%), not from separate gray hexes.
- **Do** set display at weight **500**, not 700. The airy medium-weight hero is the typographic signature.
- **Do** reserve the candy accents (red / yellow / purple / pink / green) for 3D scenes, tags, and illustration — not for chrome.
- **Do** use glow and 3D rendering for depth. On black, light is the only currency of elevation.
- **Do** use frosted dark panels (`rgba(30,30,35,0.8)`) when referencing the editor UI — it ties the site to the product.
- **Do** honor `prefers-reduced-motion` — hold WebGL scenes on a static frame and disable parallax.
- **Do** keep the blue focus ring (`#0062ff`) everywhere — it doubles as accessibility and brand.
### Don't
- **Don't** soften the canvas to charcoal (`#0d0d12`, `#18181b`). That's the generic dark-mode move; Spline commits to true black.
- **Don't** make the primary CTA a full pill. The 12px rounded-rect is intentional — the pill is the *secondary* shape.
- **Don't** stack drop shadows. They're invisible on black and read as a misunderstanding of the system. Use glow.
- **Don't** bold the hero to 700. The medium-weight 58px display is what reads as premium-creative.
- **Don't** spray the candy accents across buttons and chrome. They live in scenes, tags, and art — the chrome stays monochrome-plus-blue.
- **Don't** use full brand blue (`#0062ff`) for body *text* on black — it's borderline AA. Use blue-lighter (`#5797ff`) for links.
- **Don't** add a light-mode toggle. The black void is the conceptual foundation; a light theme breaks it.
- **Don't** crowd the void. One scene, one headline, one blue CTA per viewport — the black needs room to breathe.
- **Don't** mix in a second typeface. Spline Sans (plus its mono cut) covers everything; cohesion is the point.
- **Don't** ship heavy WebGL scenes without a static poster fallback for low-power devices.
## 15. Agent Prompt Guide
### Quick Color Reference
```
Canvas (true black): #000000
Surface (card): #0d0d10
Panel (frosted): rgba(30, 30, 35, 0.8)
Text (white): #ffffff
Text muted (70%): rgba(255, 255, 255, 0.7)
Brand blue (CTA / focus): #0062ff
Blue lighter (links/hover): #5797ff
Blue dark (pressed): #217ce5
Secondary CTA fill: rgba(255, 255, 255, 0.2)
Ghost button fill: rgba(255, 255, 255, 0.05)
Accent red: #fd585b · yellow: #ffb01f
Accent purple: #a770ff · pink: #ff5cab · green: #47b35f
Super (plan): #00a376 · Team (plan): #915eff
Border: rgba(255, 255, 255, 0.1)
```
### Example Component Prompts
1. **"Create a Spline-style hero on a true-black (`#000000`) canvas. Centred headline in Spline Sans 58px / weight 500 / `-0.025em` tracking, pure white. Below it a sub-headline in 18/400 at 70% white, max-width 720px. Two CTAs side by side: primary is electric blue (`#0062ff`) with white label, 12px radius, ~12×20px padding, 44px height — and a soft blue glow (`rgba(0,98,255,0.4) 0 8px 32px`) on hover; secondary is a translucent white pill (`rgba(255,255,255,0.2)` fill, full 50px radius). A full-bleed 3D scene placeholder sits behind/beside the copy. Stacks vertically at <640px."**
2. **"Design a Spline scene card: true-black (`#000000`) ground, 16px radius, 1px border at 8% white. Holds a placeholder for an embedded 3D scene that floats on the black. Below the scene: title in Spline Sans 20/600 white, a category tag pill in a candy accent (e.g. pink `#ff5cab` at 15% fill with `#ff5cab` text). On hover, the border brightens from 8% → 20% white over 240ms."**
3. **"Build a Spline feature section: barely-elevated band (`#0a0a0c`) on the black page. Left column has an eyebrow in Spline Sans 11/600/uppercase/0.06em at 70% white, a headline in 36/500 at 90% white, and body in 16/400 at 70% white. Right column shows a frosted editor panel (`rgba(30,30,35,0.8)` with backdrop-blur, 12px radius, 1px 10%-white border, deep black shadow). Section padding 96px vertical."**
4. **"Create a Spline ghost button: faint white fill (`rgba(255,255,255,0.05)`), 1px border at 10% white, white label in Spline Sans 15/600, 8px radius, ~10×16px padding. On hover, fill lifts to 6% white. Focus ring is 2px brand blue (`#0062ff`) with 2px offset."**
5. **"Design a Spline pricing tier card on black: surface `#0d0d10`, 12px radius, 1px 10%-white border, 24px padding. The 'Super' tier gets a teal accent (`#00a376`) badge and teal-lit blue CTA; the 'Team' tier gets a violet accent (`#915eff`). Tier name in 24/600 white, price in 40/500 white, feature list in 14/400 at 70% white with check icons in the tier color."**
6. **"Style a Spline form: input has faint white fill (`rgba(255,255,255,0.05)`), 1px 10%-white border, 8px radius, 40px height, white text, placeholder at 20% white. Label above in 13/500 at 80% white, required marker is a red asterisk (`#fd585b`). On focus the border becomes 2px brand blue (`#0062ff`). Submit is the blue (`#0062ff`) primary CTA."**
### Iteration Guide
1. **Go true black, not charcoal.** If the canvas reads as "comfortable dark mode," it's wrong — push it to `#000000`. The void is what makes everything float. Soft charcoal is the generic move Spline explicitly rejects.
2. **Ration the blue.** If multiple blue elements compete, you've diluted the signal. There should be essentially *one* electric-blue CTA per viewport, glowing alone against the black. Everything else is white, translucent-white, or a candy accent in a scene.
3. **Build hierarchy from opacity, not gray.** If you're reaching for `#888` or `#aaa` for secondary text, stop — use white at 70 / 60 / 40% opacity instead. It keeps every shade chromatically neutral on the black ground.
4. **Drop the display weight to 500.** If the hero reads as "loud SaaS," check the weight — it should be medium (500) at ~58px, not bold (700). The airy medium-weight headline is the single biggest tell of the Spline register.
5. **Trade shadows for glow.** If cards have drop shadows, they're invisible (or muddy) on black. Replace shadow-based elevation with brighter borders/fills on hover and a blue glow on the CTA. Depth on black comes from emitted light, not cast shadow.
6. **Let the accents live in the scenes.** If red / yellow / pink are showing up on buttons or section backgrounds, pull them back into the 3D scenes, illustration art, and category tags. The chrome stays monochrome-plus-blue; the rainbow is for *content*.
7. **Mind the blue's contrast role.** Solid `#0062ff` is for CTA *fills* (white label, AA at the 15/600 size). For blue *text* on black, switch to blue-lighter (`#5797ff`) which clears AAA. Don't set body links in full brand blue.
8. **Reference the editor.** Adding a frosted dark panel (`rgba(30,30,35,0.8)`, backdrop-blur, deep shadow) that looks like the actual Spline app instantly ties a generic dark page back to the brand — it signals "this is a real tool," which is the whole pitch.
1. Visual Theme & Atmosphere
Spline’s marketing surface starts from a decision most dark interfaces flinch away from: the canvas is true black (#000000), not the soft charcoal (#0d0d12, #111, #18181b) that Linear, Vercel, and almost every other dark-mode developer brand reach for to soften the screen. The reason is functional. Spline is a 3D design tool, and a true-black ground turns the page into a viewport — a void in which rendered WebGL scenes, glowing objects, and saturated accents read as physical things floating in space rather than as UI elements pasted onto a panel. The black isn’t a mood; it’s a stage.
Against that void, the type is pure white (#ffffff) set in Spline Sans — the studio’s own typeface, a geometric sans with just enough humanist warmth in the terminals to avoid feeling cold or technical. The hero runs at a confident 58px / weight 500 with -0.025em tracking; notably, Spline keeps its display weight at medium (500), not bold (700), which gives the headlines an airy, gallery-label quality rather than a shouty SaaS-hero feel. The lightness of the display weight against the heaviness of the black ground is the core tension of the whole system.
The single highest-energy element on the page is the primary CTA: an electric blue (#0062ff) pill at 12px radius reading “Get started — it’s free.” On a black canvas, that blue glows. It is the brand’s one permission to be loud, and it is rationed — most of the page is white-on-black with translucent-white chrome, so the blue CTA pulls the eye like a single lit window. A second, quieter CTA sits beside it using a 20%-white translucent fill at a full 50px pill, deliberately receding so the hierarchy between “primary action” and “alternate action” is unmistakable.
Around that disciplined monochrome-plus-blue core sits a deliberately playful multi-color accent system — red #fd585b, yellow #ffb01f, purple #a770ff, pink #ff5cab, green #47b35f. These are candy-bright, almost toy-like, and they appear in the 3D scenes, feature illustrations, category tags, and plan badges (the “Super” tier owns a teal #00a376, the “Team” tier a violet #915eff). The register Spline lands on is creative-pro: black-void seriousness for the tool itself, candy-bright accents for the play of creation. It says “this is a professional instrument” and “making things here is fun” in the same breath — which is exactly the dual promise of a 3D editor that runs in a browser tab.
The net effect is a page that feels like an application more than a brochure. Frosted dark panels (rgba(30,30,35,0.8)) borrowed straight from the editor chrome appear in feature sections; embedded scenes rotate with the cursor; the blue CTA carries a soft halo. Where Rive makes its page the demo through 2D runtime animation, Spline makes its page the viewport through 3D rendering — same conviction (show, don’t tell), different dimension.
Key Characteristics:
- True-black canvas (
#000000) — a void, not a softened charcoal — so 3D scenes read as floating objects - Pure-white type (
#ffffff) in the studio’s own Spline Sans, hero at 58px / weight 500 (airy, not shouty) - One electric-blue CTA (
#0062ff, 12px radius) as the single loud element — rationed and glowing - A quieter secondary CTA in 20%-translucent white at a full 50px pill — clear two-tier action hierarchy
- Playful multi-color accent set (red / yellow / purple / pink / green) reserved for 3D scenes, tags, and illustration
- Plan-tier colors: Super = teal
#00a376, Team = violet#915eff - Translucent-white chrome (
#ffffff0d,#ffffff14) for ghost buttons, panels, dividers — depth via opacity, not shadow - Frosted editor-style panels (
rgba(30,30,35,0.8)) that reference the actual app UI - Depth comes from 3D rendering + soft glows, never from drop-shadow stacks
- Compact radius scale (12px default, 8px controls) — modern-app, not pill-everything
2. Color Palette & Roles
Primary
- Canvas Black (
#000000) [→--color-bg]: true-black page ground — the void that makes 3D scenes float - Elevated (
#0a0a0c): barely-lifted band ground for sectional rhythm without breaking the void - Surface (
#0d0d10): near-black card / tile ground on the canvas - Text White (
#ffffff) [→--color-text-main,--color-white]: primary text and the on-blue CTA label
Brand
- Brand Blue (
#0062ff) [→--color-blue]: signature electric blue — primary CTA fill, focus ring, the one loud color - Blue Lighter (
#5797ff) [→--color-blue-lighter]: lifted blue for hover, on-dark text links, info - Blue Dark (
#217ce5) [→--color-blue-dark]: pressed / deeper blue on CTA active - Blue iOS (
#5966f3) [→--color-blue-ios]: indigo-shifted blue used in platform-adjacent contexts
Accent (playful, scene/tag-only)
- Red (
#fd585b) [→--color-red]: candy red — scene fills, category tags, doubles as danger - Yellow (
#ffb01f) [→--color-yellow]: warm amber — scene highlights, doubles as warning - Purple Bright (
#a770ff) [→--color-purple-bright]: bright violet — scene fills and tags - Purple Wash (
rgba(143,102,255,0.13)) [→--color-purple]: 13% violet tint for soft surfaces - Pink (
#ff5cab) [→--color-pink]: the candy-bright signature accent — illustration and tag highlights - Green Bright (
#47b35f) [→--color-green-bright]: bright mint-green — success, “go”, scene fills - Green Wash (
rgba(73,188,84,0.10)) [→--color-green]: 10% green tint for soft surfaces - Super Teal (
#00a376) [→--color-super]: “Super” plan tier color — premium-tier branding - Team Violet (
#915eff) [→--color-team]: “Team” plan tier color — collaboration-tier branding
Interactive
- CTA Blue (
#0062ff): primary action fill; hover → Blue Dark (#217ce5); glow lifts on hover - CTA Translucent (
rgba(255,255,255,0.2)): secondary action fill — recedes behind blue - Ghost Fill (
rgba(255,255,255,0.05)) [→--color-btn-bg]: tertiary button rest state - Ghost Hover (
rgba(255,255,255,0.06)) [→--color-btn-bg-highlight]: tertiary button hover lift - Link (
rgba(255,255,255,0.7)): default text link — brightens to full white or blue-lighter on hover - Focus Ring (
#0062ff): brand blue 2px ring on all interactive elements
Neutral Scale (white-on-black opacity ladder)
- White 100 (
#ffffff) — primary text, full strength - White 90 (
rgba(255,255,255,0.9)) [→--color-white-090] — h2, strong secondary - White 80 (
rgba(255,255,255,0.8)) [→--color-white-080] — body-strong, badge text - White 70 (
rgba(255,255,255,0.7)) [→--color-white-070] — secondary copy, nav links - White 60 (
rgba(255,255,255,0.6)) [→--color-white-060] — tertiary copy - White 40 (
rgba(255,255,255,0.4)) [→--color-white-040] — captions, faint labels - White 20 (
rgba(255,255,255,0.2)) [→--color-white-020] — disabled, placeholder, secondary-CTA fill - White 10 (
rgba(255,255,255,0.1)) [→--color-white-010] — default borders - White 08 (
rgba(255,255,255,0.08)) [→--color-white-008] — badge fill, faint surface - White 05 (
rgba(255,255,255,0.05)) [→--color-white-005] — ghost-button fill, soft divider - White 03 (
rgba(255,255,255,0.03)) [→--color-white-003] — barely-there surface wash - White 01 (
rgba(255,255,255,0.01)) [→--color-white-001] — faintest possible tile wash
Surface & Borders
- Surface (
#0d0d10) — default card tile ground - Scene Container (
#000000) — black ground inside 3D scene frames so objects float - Panel (
rgba(30,30,35,0.8)) [→--color-menu-dropdown] — frosted editor-chrome panel / dropdown - Border (
rgba(255,255,255,0.1)) — default hairline - Border Soft (
rgba(255,255,255,0.05)) — faint section divider - Border Strong (
rgba(255,255,255,0.2)) — input outline, focus precursor - Illustration Pink Ground (
#ffe6e6) [→--color-bg-pink] — soft pink ground inside scene art only - Illustration Mint Ground (
#c1f6e8) [→--color-bg-greenish] — soft mint ground inside scene art only
Shadow / Glow Colors
Spline is almost entirely flat — the black canvas absorbs conventional drop shadows, so depth comes from 3D rendering and glow instead. The CTA carries a blue halo; frosted panels lift on a deep black shadow; floating objects cast a soft ground contact shadow.
rgba(0,98,255,0.4) 0 8px 32px— blue glow under the primary CTA on hoverrgba(0,0,0,0.6) 0 12px 40px— deep shadow lifting frosted editor panelsrgba(0,0,0,0.5) 0 24px 60px— soft ground contact shadow under floating 3D objects
Semantic
- Success (
#47b35f): “Saved”, “Published”, “Up to date” — the same bright green from the accent set - Warning (
#ffb01f): advisory banners — the warm amber accent - Danger (
#fd585b): destructive / error states — the candy red does double duty - Info (
#5797ff): informational banners — the lighter blue, easier on black than full brand blue
3. Typography Rules
Font Family
Display & Body: "Spline Sans". Fallback chain: system-ui, -apple-system, "Segoe UI", sans-serif. Spline Sans is the studio’s own geometric humanist sans (open-sourced and available on Google Fonts) — round, friendly bowls with subtly humanist terminals that keep it from reading as a cold geometric. Spline uses a single typeface across display and body, which is part of what makes the brand feel like one cohesive application rather than a marketing site stitched from disparate parts.
Mono: "Spline Sans Mono" (the matching monospaced cut) for code samples, dimension readouts, and API snippets. Fallback chain: ui-monospace, SFMono-Regular, "SF Mono", Menlo, monospace. The mono cut shares the family’s roundness so code blocks feel native to the brand rather than bolted on.
The medium-weight signature: the most distinctive typographic choice is that display sizes use weight 500, not 700. The 58px hero renders at medium weight, giving headlines an airy, gallery-label quality. Bold (600/700) is reserved for smaller subheads and UI labels where extra weight aids legibility at scale. This inverts the usual SaaS convention (heavy hero, light body) and is a large part of why Spline reads as premium-creative rather than loud-startup.
Hierarchy
| Role | Font | Size | Weight | Line Height | Letter Spacing | Notes |
|---|---|---|---|---|---|---|
| display-hero | Spline Sans | 80 | 700 | 1.0 | -0.03em | Largest marketing splash — campaign pages |
| display-lg / h1 | Spline Sans | 58 | 500 | 1.05 | -0.025em | Homepage hero — airy medium weight (the signature) |
| h2 | Spline Sans | 36 | 500 | 1.15 | -0.015em | Section openers — 90% white (#ffffffe6) |
| h3 | Spline Sans | 24 | 600 | 1.25 | -0.005em | Card titles, sub-section heads |
| h4 | Spline Sans | 20 | 600 | 1.3 | 0 | Feature card headlines |
| h5 | Spline Sans | 18 | 600 | 1.35 | 0 | Tile heads, eyebrow + title pairs |
| body-lg | Spline Sans | 18 | 400 | 1.55 | 0 | Lead paragraphs, hero sub-copy |
| body | Spline Sans | 16 | 400 | 1.55 | 0 | Default body |
| body-sm | Spline Sans | 14 | 400 | 1.5 | 0 | Card descriptions, secondary copy |
| label | Spline Sans | 13 | 500 | 1.4 | 0 | Form labels, small UI text |
| caption | Spline Sans | 12 | 500 | 1.4 | 0.02em | Footer fine print, faint metadata |
| button-cta | Spline Sans | 15 | 600 | 1.0 | 0 | Primary CTA labels |
| nav-link | Spline Sans | 14 | 500 | 1.0 | 0 | Top-bar navigation, 70% white |
| micro | Spline Sans | 11 | 600 | 1.3 | 0.06em (uppercase) | “NEW”, “BETA” badges, eyebrows |
| code-inline | Spline Sans Mono | 14 | 400 | 1.5 | 0 | Inline <code> in body |
| code-block | Spline Sans Mono | 13 | 400 | 1.6 | 0 | Code samples, API snippets |
Principles
- One family, display through body. Spline Sans covers everything; cohesion over contrast. The monospaced cut (
Spline Sans Mono) is the only sibling, reserved for code. - Medium (500) for display, not bold. The 58px hero at weight 500 is the typographic signature — airy and gallery-like. Don’t bump display to 700 by default.
- Bold climbs as size drops. Weight 600/700 appears at h3 and below, where smaller type benefits from extra weight for legibility — the inverse of the hero treatment.
- Negative tracking scales with size.
-0.025emto-0.03emat hero scale, easing to0by body. Tighten display to read as a unified word-mark, never spaced. - White opacity ladder for hierarchy, not gray. Secondary text is white at reduced opacity (90 / 80 / 70 / 60 / 40%), never a separate gray hex — this keeps every shade chromatically neutral against the true-black ground.
- Line height loosens for reading. Display sits tight (1.0–1.15); body opens to 1.55 for comfortable reading on a dark ground, where loose leading reduces eye strain.
- Spline Sans Mono for technical context. Dimensions, coordinates, code, and API tokens use the mono cut to signal “this is a real tool with real parameters.”
4. Component Stylings
Buttons
button-primary — electric-blue (#0062ff) fill, white (#ffffff) label in 15/600, 12px radius (not a full pill), ~12×20px padding, 44px height. The single highest-energy element on the page: “Get started — it’s free.” On hover the fill deepens to #217ce5 and a soft blue glow (rgba(0,98,255,0.4) 0 8px 32px) lifts beneath the pill. Active presses to ~0.97 scale for 100ms.
button-secondary — translucent white fill (rgba(255,255,255,0.2)), white label, full 50px pill radius (9999). Deliberately a different shape from the primary so the two read as distinct tiers: blue-rounded-rect = “do this,” translucent-pill = “or this.” Hover brightens the fill toward 28% white.
button-ghost — faint white wash (rgba(255,255,255,0.05)), 1px 10%-white border, white label, 8px radius, ~10×16px padding. Toolbar and tertiary actions. Hover lifts the fill to 6% white (--color-btn-bg-highlight). This is the workhorse for in-product-style chrome on the marketing site.
button-text — no surface, no border, 70%-white label (rgba(255,255,255,0.7)). Brightens to full white on hover. Used for inline “Learn more” and footer-style actions.
Cards
card — near-black surface (#0d0d10), 12px radius, 1px 10%-white hairline border, 24px padding. The default content tile. On hover the surface lifts from 3% → 5% white and the border brightens from 10% → 20% over 240ms — a quiet “this is interactive” cue with no movement of the box itself.
card-scene — true-black (#000000) ground, 16px radius, 1px 8%-white border. The defining card type: wraps an embedded WebGL 3D scene. The black ground (matching the page) makes the rendered object read as floating in the card rather than sitting on a tile. The scene often rotates with the cursor inside this frame.
panel — frosted dark surface (rgba(30,30,35,0.8) with backdrop-blur), 12px radius, 1px 10%-white border. References the actual Spline editor chrome — used in feature sections that show off the app’s panels, layers, and property inspectors. Lifts on a deep black shadow (rgba(0,0,0,0.6) 0 12px 40px).
Badges, Tags, Pills
badge — 8%-white fill, 80%-white text in 11/600/uppercase/0.06em, full pill, ~4×10px padding. Neutral utility pill for “NEW”, “BETA”, section eyebrows.
badge-blue — 15% brand-blue fill (rgba(0,98,255,0.15)), blue-lighter text (#5797ff), full pill. Brand-tinted callout for “Featured” or primary highlights.
badge-super — 15% Super-teal fill, teal-lighter text (#38e2b3). Signals the premium “Super” plan tier. badge-team does the same in Team violet (#915eff / #d680ff). The accent set also surfaces as category tags inside the templates gallery (a red tag, a pink tag, a green tag), where the playful palette gets its fullest expression.
Inputs / Forms
input — faint white wash (rgba(255,255,255,0.05)), 1px 10%-white border, 8px radius, 40px height, ~10×12px padding, white text. Placeholder at 20% white. On focus the border becomes 2px brand blue (#0062ff) — matching the CTA and focus-ring color throughout.
form-label — stacked above input in 13/500 at 80% white. Required-field marker is a small red asterisk (#fd585b).
Navigation
top-bar — full-width true-black bar, 64px height, no border at rest (a faint 10%-white bottom hairline appears on scroll). Logo flush left. Primary nav centred or left-grouped (“Product”, “Templates”, “Pricing”, “Resources”, “Community”). “Sign in” text action + blue “Get started” CTA flush right.
nav-link — 14/500 at 70% white (rgba(255,255,255,0.7)), brightening to full white on hover. No underline; the brightness shift carries the affordance.
mobile-nav — full-screen black takeover at <768px. Stacked nav links at 20/500 white, the blue CTA pinned at the bottom.
5. Layout Principles
Spacing System
- Base unit: 4px
- Scale:
0 · 4 · 8 · 12 · 16 · 24 · 32 · 48 · 64 · 96 · 128 - Section padding (vertical): 96–128px between major bands; the hero claims extra breath at the top of the page
- Card internal padding: 24px standard, 32px for feature tiles
- Gutters: 16–24px between cards in grid view
Grid & Container
- Max content width: 1280px centred — modern-app moderate, not sprawling
- Reading prose width: 720px for docs, changelog, and blog surfaces
- Header height: 64px — compact, app-like
- Hero: often a centred display headline + dual CTA over a full-bleed 3D scene that occupies the background or right region
- Feature grids: 2- or 3-column at desktop, each tile holding an embedded scene or app screenshot
- Footer: multi-column link list on the black canvas with faint dividers
Whitespace Philosophy
The black canvas is the whitespace. Where a light site uses generous margins of paper to give content room, Spline uses expanses of pure black void — which reads as even more spacious because there is no surface texture at all. Content floats in this void with deliberate breathing room; the 3D scenes need negative space around them to feel like objects rather than crowded UI. The discipline is to resist filling the void: one scene, one headline, one blue CTA per viewport is the rhythm.
Section Cadence
Sections alternate between pure-black bands (default, most content) and occasional barely-elevated bands (#0a0a0c) that lift just enough to delineate a region without breaking the void. Feature sections often pair a frosted editor-panel demo on one side with copy on the other. The templates / community gallery is where the full playful accent palette appears — a grid of scene cards each glowing a different candy hue against the black. The overall flow is monochrome-disciplined-then-colorful-release: long stretches of white-on-black build restraint, then a gallery section releases the full rainbow.
6. Shapes & Radius Scale
| Tier | Value | Use |
|---|---|---|
| Micro | 2px | Code-block corners, dense table cells, tiny chips |
| Small | 4px | Tight controls, inner input elements, color swatches |
| Standard | 8px | Inputs, ghost buttons, dropdown items — the control radius |
| Comfortable | 12px | Default card, primary CTA, panel — the brand’s signature radius |
| Large | 16px | Scene containers, feature tiles, modals |
| Featured | 24px | Large hero scene frames, oversized feature cards |
| Pill | 9999px | Badges, the translucent secondary CTA, toggles |
The defining tension: the primary CTA uses 12px, not a full pill, while the secondary CTA uses a full 50px pill. This split is intentional — the rounded-rect primary reads as a solid “button,” the pill secondary as a softer “option.” Controls (inputs, ghost buttons) sit one notch tighter at 8px to read as precise, tool-like elements. There are no compound radii in mainline UI; every element rounds uniformly.
7. Depth & Elevation
| Level | Treatment | Use |
|---|---|---|
| 0 — Flat | no shadow, sits on black | Body, most cards, masthead, footer (~90% of surfaces) |
| 1 — Hairline | 1px 10%-white border | Cards, panels, inputs, dividers |
| 2 — Surface lift | 3% → 5% white fill + border 10% → 20% on hover | Interactive card hover |
| 3 — Glow | rgba(0,98,255,0.4) 0 8px 32px | Primary CTA on hover, focused scenes |
| 4 — Panel | rgba(0,0,0,0.6) 0 12px 40px + backdrop-blur | Frosted editor panels, dropdowns, modals |
| 5 — Scene contact | rgba(0,0,0,0.5) 0 24px 60px | Soft ground shadow under floating 3D objects |
Shadow Philosophy
On a true-black canvas, conventional drop shadows are invisible — a black shadow on a black ground does nothing. So Spline rethinks elevation entirely. Depth at the surface level comes from opacity (a brighter white wash or border reads as “closer”). Depth at the hero level comes from glow (the blue CTA halo, the lit edges of a 3D object) and from actual 3D rendering (the scene has real depth, real perspective, a real ground shadow rendered by the WebGL runtime). The only black-on-black shadows that work are the deep, large-blur kind used to lift frosted panels and floating objects — and even those rely on the panel itself being lighter than the void. The brand position: in a black void, light is the only currency of depth. You don’t cast shadows down; you emit light up.
8. Interaction & Motion
Easing
- Standard:
cubic-bezier(0.4, 0, 0.2, 1)— default for hover, focus, opacity transitions - Emphasized:
cubic-bezier(0.2, 0, 0, 1)— modal entry, panel reveals, section transitions - Spring:
cubic-bezier(0.34, 1.56, 0.64, 1)— gentle overshoot for 3D scene reveals and toggle snaps - Scene runtime: each embedded WebGL scene runs its own timing — Spline doesn’t impose a single curve on live 3D
Durations
| Bucket | Value | Use |
|---|---|---|
| Fast | 150ms | Hover color/opacity swap, focus ring, CTA glow fade-in |
| Standard | 240ms | Card hover, surface lift, dropdown open |
| Slow | 320ms | Section reveal on scroll, modal enter, panel slide |
| Scene | variable | WebGL scenes loop or bind to scroll / cursor |
Per-Component Recipes
- CTA hover: fill
#0062ff→#217ce5over 150ms; blue glow opacity 0 → 0.4 over 150ms; arrow icon (when present) slides 3px right. - CTA press: scale 1.0 → 0.97 over 100ms, reverts on release.
- Card hover: surface fill 3% → 5% white, border 10% → 20% white over 240ms standard; box does not move.
- Scene parallax: embedded 3D scene rotates / shifts with cursor position and scroll, runtime-driven; pauses on
prefers-reduced-motion: reduce. - Nav link: opacity 70% → 100% white over 150ms; no underline.
- Dropdown / panel: frosted panel enters with
translateY(8px) opacity(0)→0 / 1over 240ms emphasized + backdrop-blur fade-in. - Section reveal: feature blocks fade-in +
translateY(16px → 0)over 320ms emphasized on scroll-into-view. - Modal: scrim (
rgba(0,0,0,0.7)) fades in over 200ms; dialog springs in with gentle overshoot.
Page Transitions
Standard hard navigation between pages — Spline prioritizes perceived speed and lets links behave as links. The motion lives inside pages (3D scenes, scroll-bound reveals), not between them.
Reduced Motion
Respects prefers-reduced-motion: reduce. All WebGL scenes hold a static representative frame (no loop, no cursor parallax). Section reveals and card scales drop to opacity-only or instant. The CTA glow still appears (it’s a state, not motion) but its fade is shortened. The reduced-motion experience preserves the brand fully — true-black canvas, Spline Sans, blue CTA, candy accents — with only the kinetic 3D layer stilled.
9. Accessibility & A11y
Contrast Pairs
| Pair | Ratio | Level |
|---|---|---|
| #ffffff text on #000000 canvas | 21.0 | AAA (maximum possible) |
| 90% white on #000000 | 18.9 | AAA |
| 80% white on #000000 | 16.4 | AAA |
| 70% white (nav, secondary) on #000000 | 13.5 | AAA |
| 40% white (captions) on #000000 | 5.6 | AA at body sizes |
| 20% white (disabled) on #000000 | 2.6 | Decorative / disabled only — not for text |
| #ffffff on #0062ff (blue CTA) | 4.6 | AA at ≥18px or bold (the 15/600 label qualifies) |
| #0062ff brand blue on #000000 | 4.5 | AA borderline — use brand-lighter for blue text |
| #5797ff blue-lighter on #000000 | 7.0 | AAA — preferred for blue text links on black |
The white-on-black core is maximally accessible (21:1, the highest ratio achievable). The two things to watch: (1) the on-blue CTA label clears AA only at large/bold sizes, so keep CTA labels ≥15px/600 — which the system does; and (2) full brand blue as text on black is borderline, so links use the lighter blue (#5797ff, 7.0:1 AAA) while the solid blue is reserved for CTA fills.
Focus Indicators
Focus ring is 2px solid brand blue (#0062ff) with 2px offset on :focus-visible. Buttons, inputs, links, and interactive scenes all gain the blue ring. On the black canvas the blue ring has strong visibility, and it doubles as a brand signal — the same blue as the CTA.
ARIA Patterns
- Embedded 3D scene: each WebGL scene exposes
role="img"with descriptivearia-label(“Interactive 3D scene — abstract glass orb”). Purely decorative background scenes arearia-hidden="true"to avoid screen-reader noise. - Primary CTA:
aria-labelnames the destination (“Get started — opens sign-up flow”). - Frosted panels / dropdowns:
role="menu"/role="dialog"witharia-modaland focus trap as appropriate. - Templates gallery cards: wrapped in
<a>witharia-labeldescribing the template. - Mobile nav:
role="dialog",aria-modal="true", Escape to close, focus trap.
Keyboard Navigation
- Tab order: skip-link → logo → primary nav → Sign in → Get Started CTA → main content → scene/template cards → footer
- Enter/Space activates a card or an embedded scene’s primary interaction
- Escape closes the mobile drawer, any modal, or any open dropdown
- Arrow keys cycle items within the templates gallery and any carousel
Screen Reader Hints
Verbose aria-label on every meaningful 3D scene; decorative scenes are hidden. Plan-tier badges announce the tier name (“Super plan”, “Team plan”) rather than just the color. Dimension/coordinate mono readouts inside product demos are marked decorative when they’re illustrative rather than functional.
Reduced Motion
WebGL scenes hold a static frame; cursor parallax and scroll-bound 3D disable; section reveals and hover scales degrade to opacity-only or instant. The brand identity (canvas, type, blue CTA, accents) is fully preserved with the kinetic layer stilled — essential for a tool whose entire premise is motion and 3D.
10. Responsive Behavior
Breakpoints
| Name | Width | Key Changes |
|---|---|---|
| Mobile | <640px | Hero stacks; display drops to ~36/500; nav → full-screen black drawer; cards 1-up; 3D scenes simplify or static |
| Tablet | 640–1024px | Hero stays mostly vertical, display ~44/500; cards 2-up; scenes retained |
| Desktop | 1024–1280px | Full hero with background/side 3D scene; cards 2- or 3-up |
| Wide | 1280–1536px | Content caps at 1280px; cards 3-up; scenes get maximum stage |
Touch Targets
- Primary / secondary CTAs: 44px height — meets AA
- Ghost buttons: 40px (with padding to a 44px tap area)
- Nav links: 44px tap area around the visible text
- Template / scene cards: entire tile is tappable
- Embedded scenes are pointer-event aware on touch — tap-and-drag rotates the 3D object
Collapsing Strategy
- Hero: side-by-side copy + scene → stacked; 3D scene moves to background or below copy
- Display scale: ~58 → ~44 → ~36 across desktop → tablet → mobile
- Feature grids: 3-up → 2-up → 1-up
- Top-bar nav: collapses to a hamburger drawer; the blue CTA persists in the bar
- 3D scenes: heavy WebGL scenes may swap to a static poster image on low-power mobile to protect performance
Image / Scene Behavior
Embedded 3D scenes use aspect-ratio containers and the WebGL canvas scales to fit, resampling cleanly to retina. Where a scene is too heavy for a device, a static poster (a rendered frame of the same scene) stands in. Illustration art with the soft pink / mint grounds maintains native aspect ratio.
Container Queries
Used inside template cards: when a card narrows below ~280px, its metadata (title, category tag) shifts beneath the scene thumbnail instead of overlaying it.
11. Content & Voice
Tone
Creative, confident, approachable-technical. Spline’s voice is “the pro 3D tool that’s actually fun to use” — it speaks to designers and creators without enterprise stiffness, but with the credibility of a real engine under the hood. Headlines favor direct capability statements (“3D design, in the browser”, “Design 3D, collaborate in real time”) over abstract aspiration. The ”— it’s free” tag on the primary CTA is characteristic: warm, low-friction, inviting rather than transactional.
Microcopy Patterns
- Button verbs: “Get started — it’s free”, “Get Started”, “Try Spline”, “Open Editor”, “Browse Templates”, “Start designing” — inviting and outcome-named
- Error recipe: short and plain — “Couldn’t load this scene. Check your connection and try again.”
- Success confirmations: brief — “Saved”, “Published”, “Copied to clipboard”
- Field labels: minimal — “Email”, “Project name”, “Workspace”
- Empty states: encouraging — “No projects yet. Create your first scene to get started.”
Empty States
Empty workspace: “Start from a template or open a blank scene.” — names two destinations.
Empty templates / community: “Nothing here yet — browse the community gallery for inspiration.” — offers a next step.
Empty search: “No results for ‘[query]’. Try different keywords or browse by category.” — explains plus offers an alternative.
CTA Verb Conventions
- Primary: “Get started — it’s free” (hero default), “Get Started” (compact), “Try Spline” (feature-adjacent), “Open Editor” (existing user)
- Secondary: “Browse Templates”, “Watch Demo”, “See Examples”, “Learn More”
- Tertiary text: “Explore”, “Discover”, “View all”
The brand leans on “free” and “start” to lower the barrier — the tool’s whole pitch is “open a tab and start making 3D,” and the copy mirrors that frictionlessness.
12. Dark Mode & Theming
Spline is dark-only by design. The true-black canvas is not a dark mode — it is the brand. There is no light-theme toggle on the marketing site, and there shouldn’t be: the entire system (3D scenes floating in a void, glow-based depth, white-opacity hierarchy, the lit blue CTA) is built on the premise of a black ground. A light theme would invert the conceptual model — objects would sit on a surface rather than float in a void — and break the brand.
The only “light” surfaces anywhere in the system are the soft pink (#ffe6e6) and mint (#c1f6e8) grounds that appear inside 3D scene artwork and illustrations — never as page chrome. They are content, not theme. If you must produce a light variant for an embedded or co-branded context, treat it as a separate brand expression, not a token swap: re-derive depth from real drop shadows (which become visible on light grounds), pull the white-opacity ladder to a black-opacity ladder, and keep the blue CTA and candy accents intact as the throughline.
13. Lineage & Influences
Spline’s marketing surface descends from the lineage of 3D and creative-tool brands that turn their own output into the page. The conviction — “don’t describe the tool, render it” — is the same one Rive applies to 2D motion and that game-engine and creative-coding brands have used for years: the homepage is a viewport into the product. Spline’s specific contribution is taking that into real-time WebGL 3D running in a browser tab, so the page literally renders the same engine the user is about to open.
Chromatically and structurally, Spline sits at an intersection. The true-black, white-opacity, single-accent discipline of the core UI is the modern dark-developer-tool vocabulary shared with Linear and Vercel — but where those brands stop at one cool accent and stay austere, Spline breaks discipline deliberately with a candy-bright multi-color accent set (red / yellow / purple / pink / green) that descends from the playful, friendly register of Figma and the creative-community energy of design-asset marketplaces. The result is a hybrid: the seriousness of a pro engineering tool plus the fun of a creative toy. The plan-tier colors (teal “Super”, violet “Team”) and the studio’s own warm-geometric Spline Sans complete a system that is unmistakably its own — colder and more void-like than Figma, warmer and more playful than Linear.
Influences:
- Linear — the true-black / white-opacity-ladder / single-accent dark-tool discipline that governs Spline’s core chrome https://linear.app
- Figma — permission to be playful and friendly in a professional design tool; the multi-color, approachable register https://figma.com
- Vercel — black-canvas developer-brand minimalism and the conviction that restraint reads as premium https://vercel.com
- Rive — the sibling “the page is the demo” stance, applied to interactive 2D motion where Spline applies it to 3D https://rive.app
- Three.js — the WebGL-in-the-browser lineage that makes real-time 3D on a marketing page possible at all https://threejs.org
What Spline rejects: soft charcoal “comfortable dark” grounds (it commits to true black), drop-shadow elevation systems (invisible on black — it uses glow and 3D instead), static screenshots as the dominant asset (it renders live scenes), and single-accent austerity (it keeps the playful rainbow). The rejections are what let Spline read as a creative instrument rather than another austere dev tool.
14. Do’s and Don’ts
Do
- Do commit to true black (
#000000) for the canvas. The void is the brand — it’s what makes 3D scenes float. - Do keep the primary CTA electric blue (
#0062ff) at 12px radius. It’s the one loud element; let it glow. - Do give the secondary CTA a different shape (translucent white, full pill) so the two action tiers read distinctly.
- Do build hierarchy from the white-opacity ladder (90 / 80 / 70 / 60 / 40%), not from separate gray hexes.
- Do set display at weight 500, not 700. The airy medium-weight hero is the typographic signature.
- Do reserve the candy accents (red / yellow / purple / pink / green) for 3D scenes, tags, and illustration — not for chrome.
- Do use glow and 3D rendering for depth. On black, light is the only currency of elevation.
- Do use frosted dark panels (
rgba(30,30,35,0.8)) when referencing the editor UI — it ties the site to the product. - Do honor
prefers-reduced-motion— hold WebGL scenes on a static frame and disable parallax. - Do keep the blue focus ring (
#0062ff) everywhere — it doubles as accessibility and brand.
Don’t
- Don’t soften the canvas to charcoal (
#0d0d12,#18181b). That’s the generic dark-mode move; Spline commits to true black. - Don’t make the primary CTA a full pill. The 12px rounded-rect is intentional — the pill is the secondary shape.
- Don’t stack drop shadows. They’re invisible on black and read as a misunderstanding of the system. Use glow.
- Don’t bold the hero to 700. The medium-weight 58px display is what reads as premium-creative.
- Don’t spray the candy accents across buttons and chrome. They live in scenes, tags, and art — the chrome stays monochrome-plus-blue.
- Don’t use full brand blue (
#0062ff) for body text on black — it’s borderline AA. Use blue-lighter (#5797ff) for links. - Don’t add a light-mode toggle. The black void is the conceptual foundation; a light theme breaks it.
- Don’t crowd the void. One scene, one headline, one blue CTA per viewport — the black needs room to breathe.
- Don’t mix in a second typeface. Spline Sans (plus its mono cut) covers everything; cohesion is the point.
- Don’t ship heavy WebGL scenes without a static poster fallback for low-power devices.
15. Agent Prompt Guide
Quick Color Reference
Canvas (true black): #000000
Surface (card): #0d0d10
Panel (frosted): rgba(30, 30, 35, 0.8)
Text (white): #ffffff
Text muted (70%): rgba(255, 255, 255, 0.7)
Brand blue (CTA / focus): #0062ff
Blue lighter (links/hover): #5797ff
Blue dark (pressed): #217ce5
Secondary CTA fill: rgba(255, 255, 255, 0.2)
Ghost button fill: rgba(255, 255, 255, 0.05)
Accent red: #fd585b · yellow: #ffb01f
Accent purple: #a770ff · pink: #ff5cab · green: #47b35f
Super (plan): #00a376 · Team (plan): #915eff
Border: rgba(255, 255, 255, 0.1)Example Component Prompts
-
“Create a Spline-style hero on a true-black (
#000000) canvas. Centred headline in Spline Sans 58px / weight 500 /-0.025emtracking, pure white. Below it a sub-headline in 18/400 at 70% white, max-width 720px. Two CTAs side by side: primary is electric blue (#0062ff) with white label, 12px radius, ~12×20px padding, 44px height — and a soft blue glow (rgba(0,98,255,0.4) 0 8px 32px) on hover; secondary is a translucent white pill (rgba(255,255,255,0.2)fill, full 50px radius). A full-bleed 3D scene placeholder sits behind/beside the copy. Stacks vertically at <640px.” -
“Design a Spline scene card: true-black (
#000000) ground, 16px radius, 1px border at 8% white. Holds a placeholder for an embedded 3D scene that floats on the black. Below the scene: title in Spline Sans 20/600 white, a category tag pill in a candy accent (e.g. pink#ff5cabat 15% fill with#ff5cabtext). On hover, the border brightens from 8% → 20% white over 240ms.” -
“Build a Spline feature section: barely-elevated band (
#0a0a0c) on the black page. Left column has an eyebrow in Spline Sans 11/600/uppercase/0.06em at 70% white, a headline in 36/500 at 90% white, and body in 16/400 at 70% white. Right column shows a frosted editor panel (rgba(30,30,35,0.8)with backdrop-blur, 12px radius, 1px 10%-white border, deep black shadow). Section padding 96px vertical.” -
“Create a Spline ghost button: faint white fill (
rgba(255,255,255,0.05)), 1px border at 10% white, white label in Spline Sans 15/600, 8px radius, ~10×16px padding. On hover, fill lifts to 6% white. Focus ring is 2px brand blue (#0062ff) with 2px offset.” -
“Design a Spline pricing tier card on black: surface
#0d0d10, 12px radius, 1px 10%-white border, 24px padding. The ‘Super’ tier gets a teal accent (#00a376) badge and teal-lit blue CTA; the ‘Team’ tier gets a violet accent (#915eff). Tier name in 24/600 white, price in 40/500 white, feature list in 14/400 at 70% white with check icons in the tier color.” -
“Style a Spline form: input has faint white fill (
rgba(255,255,255,0.05)), 1px 10%-white border, 8px radius, 40px height, white text, placeholder at 20% white. Label above in 13/500 at 80% white, required marker is a red asterisk (#fd585b). On focus the border becomes 2px brand blue (#0062ff). Submit is the blue (#0062ff) primary CTA.”
Iteration Guide
-
Go true black, not charcoal. If the canvas reads as “comfortable dark mode,” it’s wrong — push it to
#000000. The void is what makes everything float. Soft charcoal is the generic move Spline explicitly rejects. -
Ration the blue. If multiple blue elements compete, you’ve diluted the signal. There should be essentially one electric-blue CTA per viewport, glowing alone against the black. Everything else is white, translucent-white, or a candy accent in a scene.
-
Build hierarchy from opacity, not gray. If you’re reaching for
#888or#aaafor secondary text, stop — use white at 70 / 60 / 40% opacity instead. It keeps every shade chromatically neutral on the black ground. -
Drop the display weight to 500. If the hero reads as “loud SaaS,” check the weight — it should be medium (500) at ~58px, not bold (700). The airy medium-weight headline is the single biggest tell of the Spline register.
-
Trade shadows for glow. If cards have drop shadows, they’re invisible (or muddy) on black. Replace shadow-based elevation with brighter borders/fills on hover and a blue glow on the CTA. Depth on black comes from emitted light, not cast shadow.
-
Let the accents live in the scenes. If red / yellow / pink are showing up on buttons or section backgrounds, pull them back into the 3D scenes, illustration art, and category tags. The chrome stays monochrome-plus-blue; the rainbow is for content.
-
Mind the blue’s contrast role. Solid
#0062ffis for CTA fills (white label, AA at the 15/600 size). For blue text on black, switch to blue-lighter (#5797ff) which clears AAA. Don’t set body links in full brand blue. -
Reference the editor. Adding a frosted dark panel (
rgba(30,30,35,0.8), backdrop-blur, deep shadow) that looks like the actual Spline app instantly ties a generic dark page back to the brand — it signals “this is a real tool,” which is the whole pitch.
Drop spline into your project, then ship the actual sections in an afternoon.
1 · install design
npx @webdesignhot/design-md add spline 2 · ship landing page
npx agentkit init --design spline