light · minimal · sans · developer · toolchain · swiss · blue
DESIGN.md inspired by Biome
A white-canvas Rust toolchain page where one deep azure blue does all the work.
By webdesignhot · biomejs.dev ↗
$ npx @webdesignhot/design-md add biome
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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. 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. Anthropic Editorial broadsheet for AI safety — cream canvas, Anthropic Serif body, terracotta clay accent, magazine geometry. 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. 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. 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. 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. CodeRabbit Near-black AI-review canvas — warm CodeRabbit orange accent, Plus Jakarta Sans, sharp 4px white CTAs. CodeSandbox Pale-lime electricity on a 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. 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. 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. 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. 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. 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. 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. 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. 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. Instacart Grocery-shopping-list practical — Instacart Sans on white, signature carrot green 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. 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. 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. 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 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. 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. 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. 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. 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. 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 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. 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. Signal Privacy-first messaging in `#3a76f0` Signal blue with Inter sans — minimal, ad-free, end-to-end-encrypted by default. 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. 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. 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 — 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. tldraw Casual whiteboard sketchy — hand-drawn UI primitives, dotted-grid canvas, and a soft pastel palette that wears its toy-like energy with confidence. 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. 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. 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". 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. 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. 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. 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. 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
#ffffff - bg-soft
#f7f8fa - bg-strong
#eef0f3 - surface
#ffffff - surface-soft
#fbfcfd - text AAA · 11.7
#353841 - text-strong
#17181c - text-muted
#6b7280 - text-faint — · 2.5
#9ca3af - brand AA · 5.4
#0065da - brand-strong
#0052b3 - brand-soft
#e6f0fc - brand-faint
#f2f7fe - accent
#0065da - accent-soft
#e6f0fc - link
#0065da - link-hover
#0052b3 - selected
#e6f0fc - disabled-bg
#eef0f3 - disabled-text
#9ca3af - border — · 1.2
#e4e7ec - border-strong — · 1.5
#d0d5dd - border-subtle
#f0f1f4 - divider
#e4e7ec - inverse-bg
#17181c - inverse-text
#e4e7ec - inverse-text-muted
#9ca3af - shadow-ambient
rgba(16, 24, 40, 0.04) - shadow-standard
rgba(16, 24, 40, 0.08) - shadow-brand
rgba(0, 101, 218, 0.18) - success-bg
#ecfdf3 - success-text
#027a48 - success-border
#abefc6 - warning-bg
#fffaeb - warning-text
#b54708 - warning-border
#fedf89 - danger-bg
#fef3f2 - danger-text
#b42318 - danger-border
#fecdca - info-bg
#e6f0fc - info-text
#0052b3 - info-border
#b3d4f5 - on-brand
#ffffff - on-inverse
#e4e7ec
Ship faster than ever.
display-hero Inter 80px w700 -0.03em
Ship faster than ever.
h1 Inter 64px w600 -0.02em
Ship faster than ever.
display-lg Inter 56px w700 -0.02em
Built for teams that ship.
h2 Inter 40px w600 -0.015em
A complete kit
h3 Inter 32px w600 -0.01em
The quick brown fox jumps over the lazy dog.
h4 Inter 24px w600 -0.005em
The quick brown fox jumps over the lazy dog.
h5 Inter 20px w600 0
The quick brown fox jumps over the lazy dog.
body-lg Inter 18px w400 0
The quick brown fox jumps over the lazy dog.
body Inter 16px w400 0
The quick brown fox jumps over the lazy dog.
body-sm Inter 14px w400 0
npx @webdesignhot/design-md add stripe
code "JetBrains Mono" 14px w400 0
The quick brown fox jumps over the lazy dog.
eyebrow Inter 13px w600 0.06em
OUR DESIGN SYSTEM
label Inter 13px w500 0
OUR DESIGN SYSTEM
caption Inter 12px w500 0.02em
npx @webdesignhot/design-md add stripe
code-sm "JetBrains Mono" 12px w400 0
The quick brown fox jumps over the lazy dog.
micro Inter 11px w600 0.04em
- 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
5px - lg
8px - xl
12px - card
12px - xxl
16px - 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
- muted → text-muted
- border → border
- ring → brand
Biome's homepage is a study in subtraction. The canvas is pure white `#ffffff`, the body is a cool gray `#353841`, headings drop to a near-black `#17181c`, and a single deep azure `#0065da` carries every primary action — the "Get started" CTA, links, active states, focus rings. There is no second accent. There is no gradient. There is no dark-by-default hero. The radius is almost nothing (the CTA samples at 4.8px, inputs at 8px), which reads as engineered rather than rounded-friendly. Type is set in a clean grotesk sans (Inter, falling back to the system stack) at 600 for headings — confident but never heavy. The whole page behaves like the tool it sells: a Rust formatter and linter whose entire value proposition is removing noise and enforcing one consistent style. Where Bun leans warm-retro and Vercel leans dark-gradient, Biome leans Swiss-minimal — a white grid, one functional accent, and the discipline to stop there. The restraint is the brand.
- White ground, grid discipline, one functional accent color, sans-serif rigor.
- Cool-neutral gray ramp, single saturated brand accent, restrained product-doc layout.
- Engineering-first minimalism and the toolchain-precision ethos Biome inherits.
- Neutral grotesk sans optimized for UI, the display and body voice.
- The cool-gray neutral steps and semantic color conventions the system echoes.
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: Biome
tagline: 'A white-canvas Rust toolchain page where one deep azure blue does all the work.'
updated_at: 2026-05-29T00:00:00.000Z
published_at: 2026-05-28T23:12:12.523Z
author: webdesignhot
source_url: https://biomejs.dev
spec: webdesignhot/0.1
quality: curated
featured: false
categories: [dev-tools]
tags: [light, minimal, sans, developer, toolchain, swiss, blue]
preview_swatch: ['#ffffff', '#0065da', '#17181c']
related: []
description: 'Biome''s site is the cleanest formatter-and-linter page in the JavaScript world — a pure white `#ffffff` canvas, cool-gray `#353841` body type, near-black `#17181c` headings, and a single deep azure `#0065da` that carries every primary action. Where dev tools reach for gradients and dark mode, Biome reaches for restraint: one accent blue, a tight cool-neutral gray ramp, system-sans set at 600 for headings, and a near-zero radius (4.8px on the "Get started" CTA) that reads as engineered rather than soft. It is Rust-grade precision rendered as Swiss-minimal web design — the discipline of the codebase made visible in the chrome.'
# 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
muted: text-muted
border: border
ring: brand
colors:
# — Primary —
bg: '#ffffff' # pure-white canvas, the default page ground
bg-soft: '#f7f8fa' # faint cool-gray section band for alternation
bg-strong: '#eef0f3' # darker cool-gray for active/pressed surfaces
surface: '#ffffff' # card surface, identical to canvas, separated by border
surface-soft: '#fbfcfd' # barely-off-white for nested panels
text: '#353841' # cool-gray body, the workhorse reading color
text-strong: '#17181c' # near-black headings, h1 register
text-muted: '#6b7280' # captions, metadata, secondary copy
text-faint: '#9ca3af' # tertiary, helper labels, disabled hints
# — Brand & Accents —
brand: '#0065da' # signature Biome azure, every primary CTA
brand-strong: '#0052b3' # pressed/hover-down azure
brand-soft: '#e6f0fc' # pale azure wash for callouts and highlights
brand-faint: '#f2f7fe' # palest azure tint, decorative
accent: '#0065da' # accent collapses onto brand — one-color discipline
accent-soft: '#e6f0fc' # azure wash, same as brand-soft
# — Interactive —
link: '#0065da' # links pick up the brand azure
link-hover: '#0052b3' # darker azure on hover
selected: '#e6f0fc' # selected-row / active-nav tint
disabled-bg: '#eef0f3' # disabled control surface
disabled-text: '#9ca3af' # disabled label
# — Neutrals & Borders —
border: '#e4e7ec' # default hairline border on white
border-strong: '#d0d5dd' # emphasized divider, input borders
border-subtle: '#f0f1f4' # near-invisible internal rule
divider: '#e4e7ec' # table and list dividers
# — Inverse / Dark Surfaces —
inverse-bg: '#17181c' # dark code-block / footer background
inverse-text: '#e4e7ec' # light cool-gray text on dark
inverse-text-muted: '#9ca3af' # muted comment color on dark
# — Shadow tints (neutral, cool) —
shadow-ambient: 'rgba(16, 24, 40, 0.04)' # faint cool ambient shadow
shadow-standard: 'rgba(16, 24, 40, 0.08)' # standard card shadow
shadow-brand: 'rgba(0, 101, 218, 0.18)' # azure-tinted focus halo
# — Semantic —
success-bg: '#ecfdf3'
success-text: '#027a48'
success-border: '#abefc6'
warning-bg: '#fffaeb'
warning-text: '#b54708'
warning-border: '#fedf89'
danger-bg: '#fef3f2'
danger-text: '#b42318'
danger-border: '#fecdca'
info-bg: '#e6f0fc'
info-text: '#0052b3'
info-border: '#b3d4f5'
on-brand: '#ffffff' # white text ON the azure — the standard inversion
on-inverse: '#e4e7ec' # light text on the dark inverse surface
typography:
display:
family: 'Inter, -apple-system, system-ui, "Segoe UI", Roboto, sans-serif'
weights: [500, 600, 700]
opentype-features: ['cv05', 'ss01']
body:
family: 'Inter, -apple-system, system-ui, "Segoe UI", Roboto, sans-serif'
weights: [400, 500, 600]
opentype-features: ['cv05']
mono:
family: '"JetBrains Mono", ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace'
weights: [400, 500, 700]
opentype-features: ['zero']
scale:
display-hero: { size: 80, weight: 700, lineHeight: 1.0, tracking: '-0.03em', family: display }
display-lg: { size: 56, weight: 700, lineHeight: 1.05, tracking: '-0.02em', family: display }
h1: { size: 64, weight: 600, lineHeight: 1.05, tracking: '-0.02em', family: display }
h2: { size: 40, weight: 600, lineHeight: 1.15, tracking: '-0.015em', family: display }
h3: { size: 32, weight: 600, lineHeight: 1.2, tracking: '-0.01em', family: display }
h4: { size: 24, weight: 600, lineHeight: 1.25, tracking: '-0.005em', family: display }
h5: { size: 20, weight: 600, lineHeight: 1.3, tracking: '0', family: display }
eyebrow: { size: 13, weight: 600, lineHeight: 1.4, tracking: '0.06em', family: body, transform: 'uppercase' }
body-lg: { size: 18, weight: 400, lineHeight: 1.6, tracking: '0', family: body }
body: { size: 16, weight: 400, lineHeight: 1.6, tracking: '0', family: body }
body-sm: { size: 14, weight: 400, lineHeight: 1.55, tracking: '0', family: body }
label: { size: 13, weight: 500, lineHeight: 1.4, tracking: '0', family: body }
caption: { size: 12, weight: 500, lineHeight: 1.45, tracking: '0.02em', family: body }
micro: { size: 11, weight: 600, lineHeight: 1.4, tracking: '0.04em', family: body, transform: 'uppercase' }
code: { size: 14, weight: 400, lineHeight: 1.6, tracking: '0', family: mono, opentype: 'zero' }
code-sm: { size: 12, weight: 400, lineHeight: 1.55, tracking: '0', family: mono, opentype: 'zero' }
radius:
micro: 2
sm: 4
md: 5
lg: 8
xl: 12
xxl: 16
card: 12
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
gutter: 24
section-padding: 96
grid: 12
components:
button-primary:
bg: '#0065da'
color: '#ffffff'
radius: 5
weight: 600
padding: '10px 16px'
font: body
hover: 'bg #0052b3'
button-secondary:
bg: '#ffffff'
color: '#353841'
border: '1px solid #d0d5dd'
radius: 5
weight: 600
padding: '10px 16px'
hover: 'bg #f7f8fa'
button-ghost:
bg: 'transparent'
color: '#353841'
radius: 5
weight: 500
padding: '10px 16px'
hover: 'bg #f7f8fa'
button-link:
bg: 'transparent'
color: '#0065da'
underline: 'on hover'
weight: 500
card:
bg: '#ffffff'
border: '1px solid #e4e7ec'
radius: 12
padding: '24px'
shadow: 'rgba(16, 24, 40, 0.04) 0 1px 2px'
card-callout:
bg: '#e6f0fc'
border: '1px solid #b3d4f5'
radius: 12
padding: '20px'
badge:
bg: '#e6f0fc'
color: '#0052b3'
radius: 9999
padding: '2px 10px'
weight: 600
font: body
input:
bg: '#ffffff'
color: '#353841'
border: '1px solid #d0d5dd'
radius: 8
padding: '8px 12px'
focus-ring: '0 0 0 3px rgba(0, 101, 218, 0.18)'
nav:
bg: '#ffffffcc'
backdrop-blur: 8
border-bottom: '1px solid #e4e7ec'
height: 64
search:
bg: '#ffffff'
color: '#353841'
border: '1px solid #d0d5dd'
radius: 8
padding: '8px 12px'
hint: '⌘K'
code-block:
bg: '#17181c'
color: '#e4e7ec'
radius: 12
padding: '20px 24px'
font: mono
motion:
ease-standard: 'cubic-bezier(0.4, 0, 0.2, 1)'
ease-emphasized: 'cubic-bezier(0.2, 0, 0, 1)'
duration-fast: 150
duration-standard: 240
duration-slow: 320
duration-page: 400
reduced-motion: 'respects prefers-reduced-motion: reduce — transforms collapse to opacity-only fades.'
breakpoints:
mobile: 640
tablet: 1024
desktop: 1280
wide: 1536
shadows:
none: 'none'
ambient: 'rgba(16, 24, 40, 0.04) 0 1px 2px'
standard: 'rgba(16, 24, 40, 0.08) 0 4px 12px'
elevated: 'rgba(16, 24, 40, 0.10) 0 12px 24px -8px'
brand-ring: '0 0 0 3px rgba(0, 101, 218, 0.18)'
accessibility:
contrast-text-on-bg: 9.7 # AAA (#353841 on #ffffff)
contrast-heading-on-bg: 16.4 # AAA (#17181c on #ffffff)
contrast-on-brand: 4.6 # AA at body sizes (#ffffff on #0065da)
contrast-muted-on-bg: 4.8 # AA (#6b7280 on #ffffff)
contrast-link-on-bg: 5.1 # AA (#0065da on #ffffff)
focus-ring: '3px solid rgba(0, 101, 218, 0.18)'
focus-offset: '2px'
reduced-motion-honored: true
min-touch-target: 44
dark-mode:
strategy: 'data-theme attribute toggle'
bg: '#17181c'
surface: '#1f2025'
text: '#c8cbd4'
text-strong: '#f3f4f6'
brand: '#4d97f0'
border: '#2a2c33'
note: 'Theme toggle detected on production (data-theme attribute). Dark canvas is near-black cool gray; brand azure lightens to ~#4d97f0 to hold contrast on dark.'
lineage:
summary: |
Biome's homepage is a study in subtraction. The canvas is pure
white `#ffffff`, the body is a cool gray `#353841`, headings drop
to a near-black `#17181c`, and a single deep azure `#0065da`
carries every primary action — the "Get started" CTA, links,
active states, focus rings. There is no second accent. There is no
gradient. There is no dark-by-default hero. The radius is almost
nothing (the CTA samples at 4.8px, inputs at 8px), which reads as
engineered rather than rounded-friendly. Type is set in a clean
grotesk sans (Inter, falling back to the system stack) at 600 for
headings — confident but never heavy. The whole page behaves like
the tool it sells: a Rust formatter and linter whose entire value
proposition is removing noise and enforcing one consistent style.
Where Bun leans warm-retro and Vercel leans dark-gradient, Biome
leans Swiss-minimal — a white grid, one functional accent, and the
discipline to stop there. The restraint is the brand.
influences:
- name: International Typographic Style (Swiss design)
role: White ground, grid discipline, one functional accent color, sans-serif rigor.
url: https://en.wikipedia.org/wiki/International_Typographic_Style
- name: Stripe
role: Cool-neutral gray ramp, single saturated brand accent, restrained product-doc layout.
url: https://stripe.com
- name: Rust language brand
role: Engineering-first minimalism and the toolchain-precision ethos Biome inherits.
url: https://www.rust-lang.org
- name: Inter typeface (Rasmus Andersson)
role: Neutral grotesk sans optimized for UI, the display and body voice.
url: https://rsms.me/inter
- name: Tailwind CSS palette
role: The cool-gray neutral steps and semantic color conventions the system echoes.
url: https://tailwindcss.com
---
## 1. Visual Theme & Atmosphere
Biome's homepage is what happens when a Rust toolchain designs its own
marketing page: it removes everything that does not earn its place.
The canvas is pure white `#ffffff`. The body copy is a cool gray
`#353841` — not black, slightly desaturated, easy on the eyes across a
long docs page. Headings drop to a near-black `#17181c` at a confident
600 weight, and a single deep azure `#0065da` carries every action on
the page. That is the entire palette doing the heavy lifting: white,
two grays, one blue. There is no gradient, no second accent, no
dark-by-default hero theatrics. The page sells a formatter and a
linter, and it looks like one.
The atmosphere is **Swiss-minimal engineering**. Where Vercel leans
dark-gradient drama and Bun leans warm-retro bakery, Biome leans the
International Typographic Style: a white grid, generous whitespace, a
clean grotesk sans, and exactly one functional accent. The blue is not
decorative — it is a signal. It means "this is the thing to click."
The "Get started" CTA is a solid azure rectangle with white text and a
near-zero corner radius (sampled at 4.8px), which reads as *machined*
rather than soft. Nothing about the page is trying to be friendly;
it is trying to be correct.
Depth is almost entirely flat. Cards are white-on-white separated by a
single `#e4e7ec` hairline border, lifted at most by a 4% cool-tinted
ambient shadow. The page does not stack elevation the way a Material
surface does; it relies on borders and whitespace to organize content.
The only genuinely dark surface is the code block (`#17181c` with light
gray text) — fitting for a product whose output is code, where the
terminal/editor register is the natural home for a dark panel.
The voice of the type is restrained confidence. Headings are 600
weight — heavy enough to anchor the page, light enough to avoid
shouting. The hero h1 runs 64px at -0.02em tracking, tight and
modern. Body sits at 16px with a relaxed 1.6 line height for long-form
docs readability. The system stack (Inter, falling back to
`-apple-system`) is deliberately neutral; the typeface is not the
brand, the discipline is.
The net impression is **precision made visible**. Biome's whole pitch
is "one tool, one config, one consistent style — fast, in Rust." The
homepage is the visual proof of that claim: one accent, one neutral
ramp, one weight for headings, near-zero ornament. The design is the
product demo.
**Key Characteristics**
- Pure white canvas (`#ffffff`) — no warmth, no off-white, no tint
- Single azure accent (`#0065da`) — carries every CTA, link, and active state
- Cool-gray body (`#353841`) with near-black headings (`#17181c`)
- Near-zero radius (CTA ~5px, inputs 8px) — engineered, not rounded-friendly
- One-color discipline — no second accent, no gradients anywhere
- Flat depth — hairline borders and whitespace over stacked shadows
- Clean grotesk sans at 600 for headings — confident, never heavy
- Dark code block (`#17181c`) — the only dark surface, the product's home turf
- Swiss-grid layout — white ground, generous whitespace, functional color
- White-on-azure inversion — the standard, not a signature flip
## 2. Color Palette & Roles
### Primary
- **bg** (`#ffffff`) [→ `--background`]: pure-white canvas, every page-level ground
- **text** (`#353841`) [→ `--text`]: cool-gray body copy, the workhorse reading color
- **text-strong** (`#17181c`) [→ `--heading`]: near-black headings, h1 and section openers
- **brand** (`#0065da`) [→ `--accent`]: signature azure, every primary CTA, link, and focus state
- **on-brand** (`#ffffff`) [→ `--accent-fg`]: white text on the azure — the standard inversion
### Brand & Accent
- **brand-strong** (`#0052b3`): pressed/hover-down azure for solid buttons and active links
- **brand-soft** (`#e6f0fc`): pale azure wash for callouts, badges, selected rows
- **brand-faint** (`#f2f7fe`): palest azure tint, rare decorative fill
- **accent** (`#0065da`): accent collapses onto brand — Biome runs a strict one-color system
- **accent-soft** (`#e6f0fc`): the same azure wash, used for highlight surfaces
### Interactive
- **link** (`#0065da`): inline links pick up the brand azure, underlined or color-only by context
- **link-hover** (`#0052b3`): darker azure on hover
- **selected** (`#e6f0fc`): active-nav and selected-row tint
- **disabled-bg** (`#eef0f3`): disabled control surface
- **disabled-text** (`#9ca3af`): disabled label and helper text
### Neutral Scale
- **text-strong** (`#17181c`): near-black, headings only
- **text** (`#353841`): cool gray, body default
- **text-muted** (`#6b7280`): captions, metadata, secondary copy
- **text-faint** (`#9ca3af`): tertiary labels, deemphasized hints
- **bg-strong** (`#eef0f3`): darker cool-gray for active/pressed surfaces
### Surface & Borders
- **bg-soft** (`#f7f8fa`): faint cool-gray band for section alternation
- **surface** (`#ffffff`): card surface, identical to canvas — separated by border, not fill
- **surface-soft** (`#fbfcfd`): barely-off-white for nested panels
- **border** (`#e4e7ec`): default hairline on white, the primary separator
- **border-strong** (`#d0d5dd`): emphasized dividers, input and button borders
- **border-subtle** (`#f0f1f4`): near-invisible internal rule
- **divider** (`#e4e7ec`): table and list dividers
### Inverse / Dark Surfaces
- **inverse-bg** (`#17181c`): dark code-block and footer ground — the only dark surface
- **inverse-text** (`#e4e7ec`): light cool-gray text on dark
- **inverse-text-muted** (`#9ca3af`): muted comment color in code blocks
### Shadow Colors
Shadows are cool-tinted (`rgba(16, 24, 40, …)`), low-alpha, and used
sparingly. Biome is a **near-flat depth** brand: separation comes from
hairline borders and whitespace, not stacked elevation. When a shadow
appears it is a 4–8% cool ambient at 1–12px blur — enough to lift a
card off the canvas, never enough to dramatize it.
### Semantic
- **success-bg** (`#ecfdf3`) / **success-text** (`#027a48`) / **success-border** (`#abefc6`)
- **warning-bg** (`#fffaeb`) / **warning-text** (`#b54708`) / **warning-border** (`#fedf89`)
- **danger-bg** (`#fef3f2`) / **danger-text** (`#b42318`) / **danger-border** (`#fecdca`)
- **info-bg** (`#e6f0fc`) / **info-text** (`#0052b3`) / **info-border** (`#b3d4f5`) — info reuses the brand azure, keeping the chromatic family closed
## 3. Typography Rules
### Font Family
- **Display & Body**: `Inter`, falling back to `-apple-system`, `system-ui`, `"Segoe UI"`, `Roboto`, `sans-serif`. Biome uses one neutral grotesk for both display and body — the production audit rendered the `-apple-system` fallback, which is by design: the system stack and Inter are nearly interchangeable at these weights, and the brand voice is the discipline, not the face.
- **Mono**: `"JetBrains Mono"`, falling back to `ui-monospace`, `SFMono-Regular`, `"SF Mono"`, `Menlo`, `Consolas`, `monospace` — code surfaces and inline `code`
- **OpenType features used**: `cv05` (Inter's single-story lowercase `l` for clarity), `ss01` (alternate stylistic set on display), `zero` (slashed zero in mono for code legibility)
### Hierarchy
| Role | Font | Size | Weight | Line Height | Letter Spacing | OT Features | Notes |
| --- | --- | --- | --- | --- | --- | --- | --- |
| display-hero | Inter | 80 | 700 | 1.0 | -0.03em | ss01 | Largest marketing hero; one per page |
| display-lg | Inter | 56 | 700 | 1.05 | -0.02em | — | Marketing sub-hero |
| h1 | Inter | 64 | 600 | 1.05 | -0.02em | — | Page title (live-sampled at 64/600) |
| h2 | Inter | 40 | 600 | 1.15 | -0.015em | — | Section headers |
| h3 | Inter | 32 | 600 | 1.2 | -0.01em | — | Sub-section headers |
| h4 | Inter | 24 | 600 | 1.25 | -0.005em | — | Feature/card titles |
| h5 | Inter | 20 | 600 | 1.3 | 0 | — | Sidebar and small headers |
| eyebrow | Inter | 13 | 600 | 1.4 | 0.06em | uppercase | Section labels above h2 |
| body-lg | Inter | 18 | 400 | 1.6 | 0 | — | Hero subhead, lead paragraphs |
| body | Inter | 16 | 400 | 1.6 | 0 | — | Default body (live-sampled at 16/400) |
| body-sm | Inter | 14 | 400 | 1.55 | 0 | — | Secondary body, sidebars |
| label | Inter | 13 | 500 | 1.4 | 0 | — | Form labels, table headers |
| caption | Inter | 12 | 500 | 1.45 | 0.02em | — | Metadata, footnotes |
| micro | Inter | 11 | 600 | 1.4 | 0.04em | uppercase | Tags, smallest UI labels |
| code | JetBrains Mono | 14 | 400 | 1.6 | 0 | zero | Code blocks default |
| code-sm | JetBrains Mono | 12 | 400 | 1.55 | 0 | zero | Inline code, footnote code |
### Principles
1. **Headings at 600, never 700 in body chrome.** The live hero h1 samples at 64px/600 — confident but not heavy. The 700 weights are reserved for oversized marketing display only. Reaching for 700 in section headers makes the page read as louder than the brand intends.
2. **One family does everything.** Display and body share the same grotesk sans. There is no secondary display face, no serif, no decorative cut. The discipline mirrors the single-accent color system.
3. **Negative tracking on headings, neutral on body.** Headings tighten (`-0.02em` to `-0.03em`); body sits at `0`. Never positive-track display copy — it breaks the modern-grotesk register.
4. **Generous body line height for docs.** Body runs at 1.6 line height — Biome is a documentation-heavy site, and the relaxed leading keeps long-form reading comfortable.
5. **Slashed zero in mono.** OpenType `zero` is enabled on all mono surfaces; in code samples the slashed zero disambiguates `0` from `O`, which matters in a developer-tool context.
6. **System stack is intentional, not lazy.** The fallback to `-apple-system`/`system-ui` is deliberate: Inter and the system grotesk are near-identical at these weights, so the page loads fast and stays neutral. The typeface is not the brand.
7. **Eyebrow → heading → body cadence.** Sections open with an uppercase eyebrow (13px, 600, +0.06em), then a heading, then body. This three-step rhythm carries the long-form layout.
## 4. Component Stylings
### Buttons
**Primary (solid azure)**: `#0065da` background, `#ffffff` white text, ~5px radius (sampled at 4.8px on the "Get started" CTA), weight 600, padding `10px 16px`. Hover deepens to `#0052b3`. This is the dominant CTA — "Get started", "Install", "Read the docs."
**Secondary (outline)**: `#ffffff` background, `#353841` text, 1px solid `#d0d5dd` border, ~5px radius, weight 600, padding `10px 16px`. Hover fills to `#f7f8fa`. Used for the lower-priority action sitting beside the primary CTA.
**Ghost**: transparent background, `#353841` text, no border, ~5px radius, weight 500, padding `10px 16px`. Hover fills to `#f7f8fa`. Used for tertiary actions and nav items.
**Link button**: transparent background, `#0065da` azure text, weight 500, underline on hover. Used inline in copy and as docs-nav links.
### Cards
**Default**: `#ffffff` background on the white canvas, 1px solid `#e4e7ec` hairline border, 12px radius, padding `24px`, and at most a 4% cool ambient shadow (`rgba(16, 24, 40, 0.04) 0 1px 2px`). The border does the separation work — white-on-white with a hairline rather than a fill change.
**Callout**: `#e6f0fc` azure-soft background, 1px solid `#b3d4f5` border, 12px radius, padding `20px`. Used for tips, notes, and "good to know" blocks in docs.
### Badges & Tags
`#e6f0fc` azure-soft background, `#0052b3` text, 9999 (pill) radius, padding `2px 10px`, weight 600. Used for version numbers, "new" markers, and rule-category tags. Neutral-gray variants (`#eef0f3` bg, `#6b7280` text) cover non-emphasized labels.
### Inputs & Search
`#ffffff` background, `#353841` text, 1px solid `#d0d5dd` border, 8px radius, padding `8px 12px`. Focus ring: `0 0 0 3px rgba(0, 101, 218, 0.18)` — the azure halo. Placeholder: `#9ca3af`. The site's prominent search field carries a `⌘K` hint and the same border/radius treatment — search is a first-class control, befitting a docs-heavy product.
### Navigation
`#ffffffcc` (80% white) background with `8px` backdrop-blur, 1px solid `#e4e7ec` bottom border, 64px height. Wordmark left, primary nav center, search + "Get started" CTA right. Sticks to top; the translucent white wash keeps the canvas continuous as content scrolls underneath.
### Code blocks
`#17181c` near-black background, `#e4e7ec` light-gray text, 12px radius, padding `20px 24px`, JetBrains Mono at 14px. The only dark surface on the page — and the natural one, since Biome's output is formatted/linted code. Syntax highlighting is restrained and cool-toned; the azure brand color appears on keywords or accents to tie the panel back to the system.
## 5. Layout Principles
### Spacing System
Base unit is **4px**. Scale: `0, 4, 8, 12, 16, 24, 32, 48, 64, 96, 128`. Biome is a **mid-density** brand — airier than Linear, tighter than Stripe Press. 96px section padding gives the marketing room to breathe, while docs pages tighten internal spacing to 16/24px for information density.
### Grid & Container
Container caps at **1280px** with **24px gutters**. Prose width: 720px — comfortable for long-form documentation. The grid is 12-column and held strictly: this is a Swiss-grid brand, so columns align, gutters are consistent, and content rarely bleeds the grid. Docs pages run a classic three-zone layout (left nav rail, center prose, right on-this-page TOC).
### Whitespace Philosophy
Whitespace is structural, not decorative. The white canvas means negative space *is* the page — there is no texture, no tint, no fill to hide behind. Sections are separated by padding and the occasional `#f7f8fa` band rather than by color shifts. The discipline: if a divider can be removed and whitespace can do the job, remove the divider.
### Section Cadence
The white canvas runs continuously; alternation happens via the faint `#f7f8fa` section band and card surfaces. Brand-band moments (a full azure section) are rare — used once per page at most, typically the final CTA, so the accent never loses its signal value.
## 6. Shapes & Radius Scale
| Tier | Value | Use |
| --- | --- | --- |
| Micro | 2px | Inline tags, micro-accents |
| Standard | 4px | Small chips, the floor of the scale |
| Comfortable | 5px | Primary/secondary buttons (CTA samples at ~4.8px) |
| Relaxed | 8px | Inputs, search field, secondary surfaces |
| Large | 12px | Cards, code blocks, callouts |
| Featured | 16px | Hero panels, oversized containers |
| Pill | 9999px | Badges, status pills, avatar chrome |
The near-zero radius on buttons is the brand's most telling shape
decision: at ~5px the corners read as *machined* rather than friendly.
Where consumer products round to 8–12px for approachability, Biome
keeps buttons crisp — a small but deliberate engineering signal.
Larger surfaces (cards, code blocks) relax to 12px so they don't feel
sharp at scale, but the interactive controls stay tight.
## 7. Depth & Elevation
| Level | Treatment | Use |
| --- | --- | --- |
| 0 — Flat | No shadow, no border | Page canvas, full-bleed sections |
| 1 — Hairline | 1px solid `#e4e7ec`, no shadow | Default cards, dividers, panels |
| 2 — Lifted | 1px border + `rgba(16, 24, 40, 0.04) 0 1px 2px` | Subtle card lift on white |
| 3 — Hovered | 1px border + `rgba(16, 24, 40, 0.08) 0 4px 12px` | Card hover, dropdown panels |
| 4 — Elevated | `rgba(16, 24, 40, 0.10) 0 12px 24px -8px` | Modals, command palette, popovers |
| 5 — Brand ring | `0 0 0 3px rgba(0, 101, 218, 0.18)` | Focus state on interactive controls |
**Shadow Philosophy** — Biome is a **near-flat depth** brand. Most
separation comes from the `#e4e7ec` hairline border and from
whitespace, not from stacked shadows. When a shadow is used it is
cool-tinted (`rgba(16, 24, 40, …)`, never warm or neutral-black),
low-alpha (4–10%), and soft. The page philosophy is closer to a
Swiss print layout than a Material surface — elevation is implied by
border and space, not by simulated light. The one place depth turns
literal is the focus ring, where the azure halo signals interactivity
clearly.
## 8. Interaction & Motion
### Easing
- **Standard**: `cubic-bezier(0.4, 0, 0.2, 1)` — default for color, opacity, and small transforms
- **Emphasized**: `cubic-bezier(0.2, 0, 0, 1)` — entrance animations, dropdown reveals
- **Linear** is avoided except for spinners
### Durations
- **Fast (150ms)**: hover color shifts, link underline, focus-ring fade-in
- **Standard (240ms)**: button hover, card border emphasis, dropdown open
- **Slow (320ms)**: section reveals, modal entrance, command-palette open
- **Page (400ms)**: route transitions, docs page swaps
### Per-component Micro-states
- **Button hover**: solid buttons deepen from `#0065da` to `#0052b3` over 150ms; outline/ghost fill to `#f7f8fa`. No vertical lift — Biome keeps interactions flat.
- **Card hover**: ambient shadow grows from 4% to 8% over 240ms; border may darken from `#e4e7ec` to `#d0d5dd`.
- **Link hover**: color deepens to `#0052b3` and underline appears over 150ms.
- **Focus**: 3px azure ring (`rgba(0, 101, 218, 0.18)`) fades in over 150ms with 2px offset on all interactive controls.
- **Command palette / search**: opens with a 240ms emphasized ease, backdrop fades in; `⌘K` invokes it from anywhere.
### Page Transitions
Docs navigation uses a fast cross-fade (~240–400ms); the white canvas
stays constant and only the prose column swaps. The left nav and TOC
persist across page loads to maintain orientation in the docs.
### Reduced Motion
`prefers-reduced-motion: reduce` is honored. Transforms collapse to
opacity-only fades, the command-palette entrance becomes instant, and
section reveals disable. Focus rings remain fully visible —
accessibility is never traded away for motion reduction.
## 9. Accessibility & A11y
### Contrast Pairs
- **Body text on canvas** (`#353841` on `#ffffff`): **9.7:1** — AAA at all sizes
- **Heading on canvas** (`#17181c` on `#ffffff`): **16.4:1** — AAA
- **White on brand azure** (`#ffffff` on `#0065da`): **4.6:1** — AA at body sizes (the on-brand pairing; use ≥16px or bold for small text)
- **Muted text on canvas** (`#6b7280` on `#ffffff`): **4.8:1** — AA
- **Link on canvas** (`#0065da` on `#ffffff`): **5.1:1** — AA
- **Brand text on brand-soft** (`#0052b3` on `#e6f0fc`): **6.9:1** — AA+
- **Light text on dark code** (`#e4e7ec` on `#17181c`): **14.1:1** — AAA
### Focus Indicators
3px solid `rgba(0, 101, 218, 0.18)` azure ring with 2px offset, applied
consistently across buttons, links, inputs, and the command palette.
Never rely on the default browser outline alone — always render the
brand azure ring. Because the azure is the only accent, the focus state
is unmistakable.
### ARIA Patterns
- **Combobox (search / command palette)**: `role="combobox"` with `aria-expanded`, `aria-controls`, `aria-activedescendant`; results in a `listbox`
- **Dialog**: `role="dialog"` with `aria-modal="true"`, focus trap on open, focus restore on close
- **Tooltip**: `role="tooltip"` with `aria-describedby` on the trigger; show on hover/focus, hide on blur/Escape
- **Tabs** (docs examples, config formats): `role="tablist"` / `role="tab"` / `role="tabpanel"` with arrow-key navigation
- **Code-copy button**: `aria-label="Copy code"` with `aria-live="polite"` for the confirmation toast
### Keyboard Navigation
- `⌘K` / `Ctrl+K` opens the command palette / search from anywhere
- Tab order follows visual order; left nav, prose links, and TOC are all reachable
- Skip-to-content link present at top of every page (visually hidden until focused)
- Code blocks: Tab into the copy button, Enter to copy, focus returns to the block
- Modals and the palette: Tab cycles within, Escape closes, focus restores to the invoker
### Screen Reader Hints
- Decorative SVGs and icons carry `aria-hidden="true"`
- Visible button labels are not duplicated by `aria-label` (avoid double-announcement)
- Code blocks expose language via `aria-label` (e.g., "JavaScript code")
- The `⌘K` hint in the search field is decorative; the field has a real accessible label
### Reduced Motion
See §8. All non-essential animation collapses to opacity fades or is disabled.
## 10. Responsive Behavior
### Breakpoints
| Name | Width | Notes |
| --- | --- | --- |
| Mobile | < 640px | Single column; nav collapses to hamburger; TOC hidden |
| Tablet | 640–1024px | Two-zone docs (nav drawer + prose); 8-column grid |
| Desktop | 1024–1280px | Full three-zone docs; 12-column grid |
| Wide | 1280–1536px | Container caps at 1280px; side gutters expand |
| Ultra-wide | > 1536px | Container holds at 1280px; additional negative space |
### Touch Targets
Minimum 44×44px on mobile. Buttons that read `10px 16px` on desktop
expand their hit area on mobile; nav and palette items get ≥44px
height. The `⌘K` field becomes a tappable search icon on small screens.
### Collapsing Strategy
- **Hero**: side-by-side becomes stacked single-column on mobile; hero h1 drops one tier (display → h1)
- **Feature grid**: 3-up desktop → 2-up tablet → 1-up mobile
- **Docs layout**: three-zone (nav / prose / TOC) → prose-only with the nav behind a drawer and the TOC hidden below tablet
- **Navigation**: horizontal nav becomes a hamburger drawer below 1024px
- **Code blocks**: gain horizontal scroll on mobile rather than wrapping, preserving line integrity
### Image Behavior
Logos and icons are SVG and scale losslessly. Marketing illustrations
use `srcset` for 1x/2x. Diagrams and screenshots respect the prose
width (720px) and never bleed the column.
### Container Queries
Used in feature and config cards: when a card drops below ~480px wide,
its internal layout collapses from horizontal (icon left, text right)
to a vertical stack regardless of viewport width.
## 11. Content & Voice
### Tone
**Precise, technical, and quietly confident.** Biome is a Rust
toolchain that formats and lints; the copy is matter-of-fact and
benefit-led ("Format, lint, and more in a fraction of a second"). There
is no hype, no exclamation, no emoji. The voice trusts the reader to be
a developer and respects their time — short sentences, concrete claims,
numbers where they help.
### Microcopy Patterns
- **Button verbs**: concrete and product-named ("Get started", "Install Biome", "Try the playground") over vague ("Learn more")
- **Error messages**: plain-language problem first, then the fix — mirroring Biome's own diagnostic style, which is famous for being readable
- **Success confirmations**: brief and unpunctuated. "Copied." not "Copied!"
- **Performance claims**: stated as facts with numbers ("97% Prettier compatibility", "in a fraction of a second") rather than adjectives
### Empty States
What they say: "No issues found. Your code is clean." (Direct, affirming, no fluff.)
What they don't say: "Great job! Looks like everything is perfect here — keep up the awesome work!" (Too effusive; Biome's voice is calm, not cheerleading.)
### CTA Verb Conventions
- **Primary action**: "Get started" (the live hero CTA) or "Install Biome"
- **Secondary action**: "Read the docs" / "Try the playground" / "View on GitHub"
- **Footer CTA**: a single azure "Get started" — the one full-accent moment per page
- **Not used**: "Sign up free", "Learn more", "Discover" — too generic for a toolchain
## 12. Dark Mode & Theming
**Dark mode is offered** — the production site carries a theme toggle
(detected via a `data-theme` attribute), so unlike a light-only brand,
Biome ships both modes.
In dark mode the canvas inverts to a near-black cool gray (`#17181c`,
the same value used for the light-mode code-block ground and headings),
surfaces lift to `~#1f2025`, body text becomes a light cool gray
(`~#c8cbd4`) with `~#f3f4f6` headings, and borders drop to a dim
`~#2a2c33`. The brand azure lightens from `#0065da` to roughly
`#4d97f0` so it holds contrast against the dark canvas — the same
signal, retuned for legibility.
The system is genuinely token-driven: because the light theme already
runs on a strict three-gray-plus-one-blue palette, the dark theme is a
clean inversion of the same roles rather than a separate visual
language. The discipline carries across both modes — one accent, one
neutral ramp, near-flat depth — which is exactly what you'd expect from
a tool that exists to enforce consistency.
## 13. Lineage & Influences
Biome's design language descends directly from the **International
Typographic Style** — the Swiss school of white grounds, strict grids,
sans-serif rigor, and a single functional accent color. Strip the
content away and the page is a Swiss poster: white field, aligned
columns, one blue. From **Stripe**, Biome borrows the cool-neutral gray
ramp and the convention of a single saturated brand accent carrying all
the action in an otherwise restrained product-doc layout. From the
**Rust language brand** — Biome is written in Rust and inherits its
toolchain — comes the engineering-first minimalism and the cultural
allergy to ornament for ornament's sake.
What Biome rejects is as defining as what it adopts: no dark-by-default
hero (Vercel, Turborepo), no gradient drama, no warm-retro palette
(Bun), no second accent competing with the first. The near-zero button
radius is a quiet rejection of the friendly-rounded consumer aesthetic;
the type stays on a neutral grotesk (Inter / system) rather than a
branded display face. The restraint is not an absence of design — it is
the design. Biome looks like its own diagnostics: clean, legible, and
unwilling to waste your attention.
**Named influences**
- **International Typographic Style (Swiss design)** — white ground, grid discipline, one functional accent, sans rigor. https://en.wikipedia.org/wiki/International_Typographic_Style
- **Stripe** — cool-neutral gray ramp, single saturated brand accent, restrained doc layout. https://stripe.com
- **Rust language brand** — engineering-first minimalism and the toolchain-precision ethos. https://www.rust-lang.org
- **Inter (Rasmus Andersson)** — neutral grotesk sans optimized for UI, the display and body voice. https://rsms.me/inter
- **Tailwind CSS palette** — the cool-gray neutral steps and semantic color conventions. https://tailwindcss.com
## 14. Do's and Don'ts
### Do's
- **Do** keep the canvas pure white `#ffffff`. No off-white, no warm tint — the cleanliness is the brand.
- **Do** let the single azure `#0065da` carry every primary action. One accent, no exceptions.
- **Do** use near-zero radius on buttons (~5px). The machined-corner detail is a deliberate engineering signal.
- **Do** set headings at 600 weight, not 700. Confident, not loud — the live hero h1 is 64px/600.
- **Do** separate cards with the `#e4e7ec` hairline border rather than a fill change. White-on-white plus a hairline.
- **Do** keep body type cool-gray `#353841`, not pure black — it reads easier across long docs.
- **Do** reserve the dark surface for code blocks (`#17181c`). That's the product's natural home for dark.
- **Do** use white text on the azure (`#ffffff` on `#0065da`) — the standard inversion.
- **Do** lean on whitespace and the strict 12-column grid for structure. Swiss discipline.
- **Do** enable the `⌘K` command palette / search — it's a first-class control on a docs-heavy site.
- **Do** keep semantic colors muted and reuse the azure for info states to hold the one-color discipline.
- **Do** retune the azure lighter (`~#4d97f0`) in dark mode so it stays legible.
### Don'ts
- **Don't** introduce a second accent color. Biome runs on one blue; a competing hue dilutes the signal.
- **Don't** add gradients — on the brand azure, on backgrounds, anywhere. The palette is flat by design.
- **Don't** round buttons to 8–12px. The near-zero radius is intentional; rounding makes it read as a consumer SaaS.
- **Don't** use pure black `#000000` for headings. Headings are `#17181c`; body is `#353841`. The cool grays are the brand.
- **Don't** stack heavy drop shadows. Depth is near-flat — hairline borders and whitespace, not Material elevation.
- **Don't** set headings at 700 in normal section chrome — reserve 700 for oversized marketing display only.
- **Don't** warm up the palette. There is no warm gray, no cream — Biome is cool-neutral throughout.
- **Don't** make the whole page dark by default. Biome offers dark mode via toggle, but light is the canonical first impression.
- **Don't** swap in a branded display typeface. The neutral grotesk (Inter / system) is the point — the discipline is the voice.
- **Don't** let the azure cover large areas. It's an accent on CTAs, links, and active states — full-azure sections appear once per page at most.
## 15. Agent Prompt Guide
### Quick Color Reference
```
bg: #ffffff
bg-soft: #f7f8fa
surface: #ffffff
text: #353841
text-strong: #17181c
text-muted: #6b7280
brand: #0065da
brand-strong: #0052b3
brand-soft: #e6f0fc
border: #e4e7ec
inverse-bg: #17181c
link: #0065da
```
### Example Component Prompts
1. *"Create a hero on a pure white `#ffffff` canvas: a 64px Inter 600 headline at -0.02em tracking in near-black `#17181c`, an 18px cool-gray `#353841` subhead, and a solid azure `#0065da` 'Get started' button with white text, weight 600, ~5px radius, padding 10px 16px. No gradient, no shadow drama, strict left-aligned grid."*
2. *"Design a feature card: `#ffffff` background on the white canvas, 1px solid `#e4e7ec` hairline border, 12px radius, 24px padding, a 24px Inter 600 title in `#17181c`, and 16px `#353841` body. On hover, raise a 8% cool ambient shadow over 240ms — no vertical lift."*
3. *"Build a dark code block: `#17181c` background, light-gray `#e4e7ec` text, JetBrains Mono at 14px, 12px radius, 20px 24px padding, slashed-zero OpenType enabled, azure `#0065da` keyword highlighting, and a copy button with `aria-label='Copy code'`."*
4. *"Create an outline secondary button: `#ffffff` background, `#353841` text, 1px solid `#d0d5dd` border, ~5px radius, weight 600, padding 10px 16px. Hover fills to `#f7f8fa`. Place it beside the azure primary CTA."*
5. *"Render the navigation: 64px height, `#ffffffcc` background with 8px backdrop-blur, 1px `#e4e7ec` bottom border, wordmark left, nav center, a `⌘K` search field plus a 'Get started' azure CTA on the right. No shadow."*
6. *"Add an info callout: `#e6f0fc` azure-soft background, 1px solid `#b3d4f5` border, 12px radius, 20px padding, a 20px Inter 600 title and 16px body in `#0052b3`. Use for docs tips and notes."*
### Iteration Guide
1. **Lock the white canvas first.** If the background is off-white or tinted, it isn't Biome. Pure `#ffffff`, then iterate on everything else.
2. **Count the accents.** There should be exactly one — the azure `#0065da`. If a second saturated color appears, remove it; the one-color discipline is the brand.
3. **Check the button radius.** If buttons are rounded to 8–12px, tighten them to ~5px. The near-zero corner is the engineering signal that separates Biome from consumer SaaS.
4. **Verify heading weight.** Headings should be 600, not 700. If the page feels loud, drop the weight — the live hero h1 is 64px/600.
5. **Confirm the grays are cool.** Body is `#353841`, headings `#17181c`, muted `#6b7280` — all cool-neutral. If any gray reads warm, recolor it.
6. **Audit depth.** Cards should separate via the `#e4e7ec` hairline border, not heavy shadows. If you see Material-style elevation, flatten it.
7. **Keep the azure scarce.** It belongs on CTAs, links, focus rings, and active states — roughly 5% of the visual area. Full-azure sections appear once per page at most.
8. **Add the dark theme as a clean inversion.** If you ship dark mode, invert the same role tokens (canvas → `#17181c`, azure → `~#4d97f0`) rather than inventing a new palette — the system is token-driven both ways.
1. Visual Theme & Atmosphere
Biome’s homepage is what happens when a Rust toolchain designs its own
marketing page: it removes everything that does not earn its place.
The canvas is pure white #ffffff. The body copy is a cool gray
#353841 — not black, slightly desaturated, easy on the eyes across a
long docs page. Headings drop to a near-black #17181c at a confident
600 weight, and a single deep azure #0065da carries every action on
the page. That is the entire palette doing the heavy lifting: white,
two grays, one blue. There is no gradient, no second accent, no
dark-by-default hero theatrics. The page sells a formatter and a
linter, and it looks like one.
The atmosphere is Swiss-minimal engineering. Where Vercel leans dark-gradient drama and Bun leans warm-retro bakery, Biome leans the International Typographic Style: a white grid, generous whitespace, a clean grotesk sans, and exactly one functional accent. The blue is not decorative — it is a signal. It means “this is the thing to click.” The “Get started” CTA is a solid azure rectangle with white text and a near-zero corner radius (sampled at 4.8px), which reads as machined rather than soft. Nothing about the page is trying to be friendly; it is trying to be correct.
Depth is almost entirely flat. Cards are white-on-white separated by a
single #e4e7ec hairline border, lifted at most by a 4% cool-tinted
ambient shadow. The page does not stack elevation the way a Material
surface does; it relies on borders and whitespace to organize content.
The only genuinely dark surface is the code block (#17181c with light
gray text) — fitting for a product whose output is code, where the
terminal/editor register is the natural home for a dark panel.
The voice of the type is restrained confidence. Headings are 600
weight — heavy enough to anchor the page, light enough to avoid
shouting. The hero h1 runs 64px at -0.02em tracking, tight and
modern. Body sits at 16px with a relaxed 1.6 line height for long-form
docs readability. The system stack (Inter, falling back to
-apple-system) is deliberately neutral; the typeface is not the
brand, the discipline is.
The net impression is precision made visible. Biome’s whole pitch is “one tool, one config, one consistent style — fast, in Rust.” The homepage is the visual proof of that claim: one accent, one neutral ramp, one weight for headings, near-zero ornament. The design is the product demo.
Key Characteristics
- Pure white canvas (
#ffffff) — no warmth, no off-white, no tint - Single azure accent (
#0065da) — carries every CTA, link, and active state - Cool-gray body (
#353841) with near-black headings (#17181c) - Near-zero radius (CTA ~5px, inputs 8px) — engineered, not rounded-friendly
- One-color discipline — no second accent, no gradients anywhere
- Flat depth — hairline borders and whitespace over stacked shadows
- Clean grotesk sans at 600 for headings — confident, never heavy
- Dark code block (
#17181c) — the only dark surface, the product’s home turf - Swiss-grid layout — white ground, generous whitespace, functional color
- White-on-azure inversion — the standard, not a signature flip
2. Color Palette & Roles
Primary
- bg (
#ffffff) [→--background]: pure-white canvas, every page-level ground - text (
#353841) [→--text]: cool-gray body copy, the workhorse reading color - text-strong (
#17181c) [→--heading]: near-black headings, h1 and section openers - brand (
#0065da) [→--accent]: signature azure, every primary CTA, link, and focus state - on-brand (
#ffffff) [→--accent-fg]: white text on the azure — the standard inversion
Brand & Accent
- brand-strong (
#0052b3): pressed/hover-down azure for solid buttons and active links - brand-soft (
#e6f0fc): pale azure wash for callouts, badges, selected rows - brand-faint (
#f2f7fe): palest azure tint, rare decorative fill - accent (
#0065da): accent collapses onto brand — Biome runs a strict one-color system - accent-soft (
#e6f0fc): the same azure wash, used for highlight surfaces
Interactive
- link (
#0065da): inline links pick up the brand azure, underlined or color-only by context - link-hover (
#0052b3): darker azure on hover - selected (
#e6f0fc): active-nav and selected-row tint - disabled-bg (
#eef0f3): disabled control surface - disabled-text (
#9ca3af): disabled label and helper text
Neutral Scale
- text-strong (
#17181c): near-black, headings only - text (
#353841): cool gray, body default - text-muted (
#6b7280): captions, metadata, secondary copy - text-faint (
#9ca3af): tertiary labels, deemphasized hints - bg-strong (
#eef0f3): darker cool-gray for active/pressed surfaces
Surface & Borders
- bg-soft (
#f7f8fa): faint cool-gray band for section alternation - surface (
#ffffff): card surface, identical to canvas — separated by border, not fill - surface-soft (
#fbfcfd): barely-off-white for nested panels - border (
#e4e7ec): default hairline on white, the primary separator - border-strong (
#d0d5dd): emphasized dividers, input and button borders - border-subtle (
#f0f1f4): near-invisible internal rule - divider (
#e4e7ec): table and list dividers
Inverse / Dark Surfaces
- inverse-bg (
#17181c): dark code-block and footer ground — the only dark surface - inverse-text (
#e4e7ec): light cool-gray text on dark - inverse-text-muted (
#9ca3af): muted comment color in code blocks
Shadow Colors
Shadows are cool-tinted (rgba(16, 24, 40, …)), low-alpha, and used
sparingly. Biome is a near-flat depth brand: separation comes from
hairline borders and whitespace, not stacked elevation. When a shadow
appears it is a 4–8% cool ambient at 1–12px blur — enough to lift a
card off the canvas, never enough to dramatize it.
Semantic
- success-bg (
#ecfdf3) / success-text (#027a48) / success-border (#abefc6) - warning-bg (
#fffaeb) / warning-text (#b54708) / warning-border (#fedf89) - danger-bg (
#fef3f2) / danger-text (#b42318) / danger-border (#fecdca) - info-bg (
#e6f0fc) / info-text (#0052b3) / info-border (#b3d4f5) — info reuses the brand azure, keeping the chromatic family closed
3. Typography Rules
Font Family
- Display & Body:
Inter, falling back to-apple-system,system-ui,"Segoe UI",Roboto,sans-serif. Biome uses one neutral grotesk for both display and body — the production audit rendered the-apple-systemfallback, which is by design: the system stack and Inter are nearly interchangeable at these weights, and the brand voice is the discipline, not the face. - Mono:
"JetBrains Mono", falling back toui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,monospace— code surfaces and inlinecode - OpenType features used:
cv05(Inter’s single-story lowercaselfor clarity),ss01(alternate stylistic set on display),zero(slashed zero in mono for code legibility)
Hierarchy
| Role | Font | Size | Weight | Line Height | Letter Spacing | OT Features | Notes |
|---|---|---|---|---|---|---|---|
| display-hero | Inter | 80 | 700 | 1.0 | -0.03em | ss01 | Largest marketing hero; one per page |
| display-lg | Inter | 56 | 700 | 1.05 | -0.02em | — | Marketing sub-hero |
| h1 | Inter | 64 | 600 | 1.05 | -0.02em | — | Page title (live-sampled at 64/600) |
| h2 | Inter | 40 | 600 | 1.15 | -0.015em | — | Section headers |
| h3 | Inter | 32 | 600 | 1.2 | -0.01em | — | Sub-section headers |
| h4 | Inter | 24 | 600 | 1.25 | -0.005em | — | Feature/card titles |
| h5 | Inter | 20 | 600 | 1.3 | 0 | — | Sidebar and small headers |
| eyebrow | Inter | 13 | 600 | 1.4 | 0.06em | uppercase | Section labels above h2 |
| body-lg | Inter | 18 | 400 | 1.6 | 0 | — | Hero subhead, lead paragraphs |
| body | Inter | 16 | 400 | 1.6 | 0 | — | Default body (live-sampled at 16/400) |
| body-sm | Inter | 14 | 400 | 1.55 | 0 | — | Secondary body, sidebars |
| label | Inter | 13 | 500 | 1.4 | 0 | — | Form labels, table headers |
| caption | Inter | 12 | 500 | 1.45 | 0.02em | — | Metadata, footnotes |
| micro | Inter | 11 | 600 | 1.4 | 0.04em | uppercase | Tags, smallest UI labels |
| code | JetBrains Mono | 14 | 400 | 1.6 | 0 | zero | Code blocks default |
| code-sm | JetBrains Mono | 12 | 400 | 1.55 | 0 | zero | Inline code, footnote code |
Principles
- Headings at 600, never 700 in body chrome. The live hero h1 samples at 64px/600 — confident but not heavy. The 700 weights are reserved for oversized marketing display only. Reaching for 700 in section headers makes the page read as louder than the brand intends.
- One family does everything. Display and body share the same grotesk sans. There is no secondary display face, no serif, no decorative cut. The discipline mirrors the single-accent color system.
- Negative tracking on headings, neutral on body. Headings tighten (
-0.02emto-0.03em); body sits at0. Never positive-track display copy — it breaks the modern-grotesk register. - Generous body line height for docs. Body runs at 1.6 line height — Biome is a documentation-heavy site, and the relaxed leading keeps long-form reading comfortable.
- Slashed zero in mono. OpenType
zerois enabled on all mono surfaces; in code samples the slashed zero disambiguates0fromO, which matters in a developer-tool context. - System stack is intentional, not lazy. The fallback to
-apple-system/system-uiis deliberate: Inter and the system grotesk are near-identical at these weights, so the page loads fast and stays neutral. The typeface is not the brand. - Eyebrow → heading → body cadence. Sections open with an uppercase eyebrow (13px, 600, +0.06em), then a heading, then body. This three-step rhythm carries the long-form layout.
4. Component Stylings
Buttons
Primary (solid azure): #0065da background, #ffffff white text, ~5px radius (sampled at 4.8px on the “Get started” CTA), weight 600, padding 10px 16px. Hover deepens to #0052b3. This is the dominant CTA — “Get started”, “Install”, “Read the docs.”
Secondary (outline): #ffffff background, #353841 text, 1px solid #d0d5dd border, ~5px radius, weight 600, padding 10px 16px. Hover fills to #f7f8fa. Used for the lower-priority action sitting beside the primary CTA.
Ghost: transparent background, #353841 text, no border, ~5px radius, weight 500, padding 10px 16px. Hover fills to #f7f8fa. Used for tertiary actions and nav items.
Link button: transparent background, #0065da azure text, weight 500, underline on hover. Used inline in copy and as docs-nav links.
Cards
Default: #ffffff background on the white canvas, 1px solid #e4e7ec hairline border, 12px radius, padding 24px, and at most a 4% cool ambient shadow (rgba(16, 24, 40, 0.04) 0 1px 2px). The border does the separation work — white-on-white with a hairline rather than a fill change.
Callout: #e6f0fc azure-soft background, 1px solid #b3d4f5 border, 12px radius, padding 20px. Used for tips, notes, and “good to know” blocks in docs.
Badges & Tags
#e6f0fc azure-soft background, #0052b3 text, 9999 (pill) radius, padding 2px 10px, weight 600. Used for version numbers, “new” markers, and rule-category tags. Neutral-gray variants (#eef0f3 bg, #6b7280 text) cover non-emphasized labels.
Inputs & Search
#ffffff background, #353841 text, 1px solid #d0d5dd border, 8px radius, padding 8px 12px. Focus ring: 0 0 0 3px rgba(0, 101, 218, 0.18) — the azure halo. Placeholder: #9ca3af. The site’s prominent search field carries a ⌘K hint and the same border/radius treatment — search is a first-class control, befitting a docs-heavy product.
Navigation
#ffffffcc (80% white) background with 8px backdrop-blur, 1px solid #e4e7ec bottom border, 64px height. Wordmark left, primary nav center, search + “Get started” CTA right. Sticks to top; the translucent white wash keeps the canvas continuous as content scrolls underneath.
Code blocks
#17181c near-black background, #e4e7ec light-gray text, 12px radius, padding 20px 24px, JetBrains Mono at 14px. The only dark surface on the page — and the natural one, since Biome’s output is formatted/linted code. Syntax highlighting is restrained and cool-toned; the azure brand color appears on keywords or accents to tie the panel back to the system.
5. Layout Principles
Spacing System
Base unit is 4px. Scale: 0, 4, 8, 12, 16, 24, 32, 48, 64, 96, 128. Biome is a mid-density brand — airier than Linear, tighter than Stripe Press. 96px section padding gives the marketing room to breathe, while docs pages tighten internal spacing to 16/24px for information density.
Grid & Container
Container caps at 1280px with 24px gutters. Prose width: 720px — comfortable for long-form documentation. The grid is 12-column and held strictly: this is a Swiss-grid brand, so columns align, gutters are consistent, and content rarely bleeds the grid. Docs pages run a classic three-zone layout (left nav rail, center prose, right on-this-page TOC).
Whitespace Philosophy
Whitespace is structural, not decorative. The white canvas means negative space is the page — there is no texture, no tint, no fill to hide behind. Sections are separated by padding and the occasional #f7f8fa band rather than by color shifts. The discipline: if a divider can be removed and whitespace can do the job, remove the divider.
Section Cadence
The white canvas runs continuously; alternation happens via the faint #f7f8fa section band and card surfaces. Brand-band moments (a full azure section) are rare — used once per page at most, typically the final CTA, so the accent never loses its signal value.
6. Shapes & Radius Scale
| Tier | Value | Use |
|---|---|---|
| Micro | 2px | Inline tags, micro-accents |
| Standard | 4px | Small chips, the floor of the scale |
| Comfortable | 5px | Primary/secondary buttons (CTA samples at ~4.8px) |
| Relaxed | 8px | Inputs, search field, secondary surfaces |
| Large | 12px | Cards, code blocks, callouts |
| Featured | 16px | Hero panels, oversized containers |
| Pill | 9999px | Badges, status pills, avatar chrome |
The near-zero radius on buttons is the brand’s most telling shape decision: at ~5px the corners read as machined rather than friendly. Where consumer products round to 8–12px for approachability, Biome keeps buttons crisp — a small but deliberate engineering signal. Larger surfaces (cards, code blocks) relax to 12px so they don’t feel sharp at scale, but the interactive controls stay tight.
7. Depth & Elevation
| Level | Treatment | Use |
|---|---|---|
| 0 — Flat | No shadow, no border | Page canvas, full-bleed sections |
| 1 — Hairline | 1px solid #e4e7ec, no shadow | Default cards, dividers, panels |
| 2 — Lifted | 1px border + rgba(16, 24, 40, 0.04) 0 1px 2px | Subtle card lift on white |
| 3 — Hovered | 1px border + rgba(16, 24, 40, 0.08) 0 4px 12px | Card hover, dropdown panels |
| 4 — Elevated | rgba(16, 24, 40, 0.10) 0 12px 24px -8px | Modals, command palette, popovers |
| 5 — Brand ring | 0 0 0 3px rgba(0, 101, 218, 0.18) | Focus state on interactive controls |
Shadow Philosophy — Biome is a near-flat depth brand. Most
separation comes from the #e4e7ec hairline border and from
whitespace, not from stacked shadows. When a shadow is used it is
cool-tinted (rgba(16, 24, 40, …), never warm or neutral-black),
low-alpha (4–10%), and soft. The page philosophy is closer to a
Swiss print layout than a Material surface — elevation is implied by
border and space, not by simulated light. The one place depth turns
literal is the focus ring, where the azure halo signals interactivity
clearly.
8. Interaction & Motion
Easing
- Standard:
cubic-bezier(0.4, 0, 0.2, 1)— default for color, opacity, and small transforms - Emphasized:
cubic-bezier(0.2, 0, 0, 1)— entrance animations, dropdown reveals - Linear is avoided except for spinners
Durations
- Fast (150ms): hover color shifts, link underline, focus-ring fade-in
- Standard (240ms): button hover, card border emphasis, dropdown open
- Slow (320ms): section reveals, modal entrance, command-palette open
- Page (400ms): route transitions, docs page swaps
Per-component Micro-states
- Button hover: solid buttons deepen from
#0065dato#0052b3over 150ms; outline/ghost fill to#f7f8fa. No vertical lift — Biome keeps interactions flat. - Card hover: ambient shadow grows from 4% to 8% over 240ms; border may darken from
#e4e7ecto#d0d5dd. - Link hover: color deepens to
#0052b3and underline appears over 150ms. - Focus: 3px azure ring (
rgba(0, 101, 218, 0.18)) fades in over 150ms with 2px offset on all interactive controls. - Command palette / search: opens with a 240ms emphasized ease, backdrop fades in;
⌘Kinvokes it from anywhere.
Page Transitions
Docs navigation uses a fast cross-fade (~240–400ms); the white canvas stays constant and only the prose column swaps. The left nav and TOC persist across page loads to maintain orientation in the docs.
Reduced Motion
prefers-reduced-motion: reduce is honored. Transforms collapse to
opacity-only fades, the command-palette entrance becomes instant, and
section reveals disable. Focus rings remain fully visible —
accessibility is never traded away for motion reduction.
9. Accessibility & A11y
Contrast Pairs
- Body text on canvas (
#353841on#ffffff): 9.7:1 — AAA at all sizes - Heading on canvas (
#17181con#ffffff): 16.4:1 — AAA - White on brand azure (
#ffffffon#0065da): 4.6:1 — AA at body sizes (the on-brand pairing; use ≥16px or bold for small text) - Muted text on canvas (
#6b7280on#ffffff): 4.8:1 — AA - Link on canvas (
#0065daon#ffffff): 5.1:1 — AA - Brand text on brand-soft (
#0052b3on#e6f0fc): 6.9:1 — AA+ - Light text on dark code (
#e4e7econ#17181c): 14.1:1 — AAA
Focus Indicators
3px solid rgba(0, 101, 218, 0.18) azure ring with 2px offset, applied
consistently across buttons, links, inputs, and the command palette.
Never rely on the default browser outline alone — always render the
brand azure ring. Because the azure is the only accent, the focus state
is unmistakable.
ARIA Patterns
- Combobox (search / command palette):
role="combobox"witharia-expanded,aria-controls,aria-activedescendant; results in alistbox - Dialog:
role="dialog"witharia-modal="true", focus trap on open, focus restore on close - Tooltip:
role="tooltip"witharia-describedbyon the trigger; show on hover/focus, hide on blur/Escape - Tabs (docs examples, config formats):
role="tablist"/role="tab"/role="tabpanel"with arrow-key navigation - Code-copy button:
aria-label="Copy code"witharia-live="polite"for the confirmation toast
Keyboard Navigation
⌘K/Ctrl+Kopens the command palette / search from anywhere- Tab order follows visual order; left nav, prose links, and TOC are all reachable
- Skip-to-content link present at top of every page (visually hidden until focused)
- Code blocks: Tab into the copy button, Enter to copy, focus returns to the block
- Modals and the palette: Tab cycles within, Escape closes, focus restores to the invoker
Screen Reader Hints
- Decorative SVGs and icons carry
aria-hidden="true" - Visible button labels are not duplicated by
aria-label(avoid double-announcement) - Code blocks expose language via
aria-label(e.g., “JavaScript code”) - The
⌘Khint in the search field is decorative; the field has a real accessible label
Reduced Motion
See §8. All non-essential animation collapses to opacity fades or is disabled.
10. Responsive Behavior
Breakpoints
| Name | Width | Notes |
|---|---|---|
| Mobile | < 640px | Single column; nav collapses to hamburger; TOC hidden |
| Tablet | 640–1024px | Two-zone docs (nav drawer + prose); 8-column grid |
| Desktop | 1024–1280px | Full three-zone docs; 12-column grid |
| Wide | 1280–1536px | Container caps at 1280px; side gutters expand |
| Ultra-wide | > 1536px | Container holds at 1280px; additional negative space |
Touch Targets
Minimum 44×44px on mobile. Buttons that read 10px 16px on desktop
expand their hit area on mobile; nav and palette items get ≥44px
height. The ⌘K field becomes a tappable search icon on small screens.
Collapsing Strategy
- Hero: side-by-side becomes stacked single-column on mobile; hero h1 drops one tier (display → h1)
- Feature grid: 3-up desktop → 2-up tablet → 1-up mobile
- Docs layout: three-zone (nav / prose / TOC) → prose-only with the nav behind a drawer and the TOC hidden below tablet
- Navigation: horizontal nav becomes a hamburger drawer below 1024px
- Code blocks: gain horizontal scroll on mobile rather than wrapping, preserving line integrity
Image Behavior
Logos and icons are SVG and scale losslessly. Marketing illustrations
use srcset for 1x/2x. Diagrams and screenshots respect the prose
width (720px) and never bleed the column.
Container Queries
Used in feature and config cards: when a card drops below ~480px wide, its internal layout collapses from horizontal (icon left, text right) to a vertical stack regardless of viewport width.
11. Content & Voice
Tone
Precise, technical, and quietly confident. Biome is a Rust toolchain that formats and lints; the copy is matter-of-fact and benefit-led (“Format, lint, and more in a fraction of a second”). There is no hype, no exclamation, no emoji. The voice trusts the reader to be a developer and respects their time — short sentences, concrete claims, numbers where they help.
Microcopy Patterns
- Button verbs: concrete and product-named (“Get started”, “Install Biome”, “Try the playground”) over vague (“Learn more”)
- Error messages: plain-language problem first, then the fix — mirroring Biome’s own diagnostic style, which is famous for being readable
- Success confirmations: brief and unpunctuated. “Copied.” not “Copied!”
- Performance claims: stated as facts with numbers (“97% Prettier compatibility”, “in a fraction of a second”) rather than adjectives
Empty States
What they say: “No issues found. Your code is clean.” (Direct, affirming, no fluff.)
What they don’t say: “Great job! Looks like everything is perfect here — keep up the awesome work!” (Too effusive; Biome’s voice is calm, not cheerleading.)
CTA Verb Conventions
- Primary action: “Get started” (the live hero CTA) or “Install Biome”
- Secondary action: “Read the docs” / “Try the playground” / “View on GitHub”
- Footer CTA: a single azure “Get started” — the one full-accent moment per page
- Not used: “Sign up free”, “Learn more”, “Discover” — too generic for a toolchain
12. Dark Mode & Theming
Dark mode is offered — the production site carries a theme toggle
(detected via a data-theme attribute), so unlike a light-only brand,
Biome ships both modes.
In dark mode the canvas inverts to a near-black cool gray (#17181c,
the same value used for the light-mode code-block ground and headings),
surfaces lift to ~#1f2025, body text becomes a light cool gray
(~#c8cbd4) with ~#f3f4f6 headings, and borders drop to a dim
~#2a2c33. The brand azure lightens from #0065da to roughly
#4d97f0 so it holds contrast against the dark canvas — the same
signal, retuned for legibility.
The system is genuinely token-driven: because the light theme already runs on a strict three-gray-plus-one-blue palette, the dark theme is a clean inversion of the same roles rather than a separate visual language. The discipline carries across both modes — one accent, one neutral ramp, near-flat depth — which is exactly what you’d expect from a tool that exists to enforce consistency.
13. Lineage & Influences
Biome’s design language descends directly from the International Typographic Style — the Swiss school of white grounds, strict grids, sans-serif rigor, and a single functional accent color. Strip the content away and the page is a Swiss poster: white field, aligned columns, one blue. From Stripe, Biome borrows the cool-neutral gray ramp and the convention of a single saturated brand accent carrying all the action in an otherwise restrained product-doc layout. From the Rust language brand — Biome is written in Rust and inherits its toolchain — comes the engineering-first minimalism and the cultural allergy to ornament for ornament’s sake.
What Biome rejects is as defining as what it adopts: no dark-by-default hero (Vercel, Turborepo), no gradient drama, no warm-retro palette (Bun), no second accent competing with the first. The near-zero button radius is a quiet rejection of the friendly-rounded consumer aesthetic; the type stays on a neutral grotesk (Inter / system) rather than a branded display face. The restraint is not an absence of design — it is the design. Biome looks like its own diagnostics: clean, legible, and unwilling to waste your attention.
Named influences
- International Typographic Style (Swiss design) — white ground, grid discipline, one functional accent, sans rigor. https://en.wikipedia.org/wiki/International_Typographic_Style
- Stripe — cool-neutral gray ramp, single saturated brand accent, restrained doc layout. https://stripe.com
- Rust language brand — engineering-first minimalism and the toolchain-precision ethos. https://www.rust-lang.org
- Inter (Rasmus Andersson) — neutral grotesk sans optimized for UI, the display and body voice. https://rsms.me/inter
- Tailwind CSS palette — the cool-gray neutral steps and semantic color conventions. https://tailwindcss.com
14. Do’s and Don’ts
Do’s
- Do keep the canvas pure white
#ffffff. No off-white, no warm tint — the cleanliness is the brand. - Do let the single azure
#0065dacarry every primary action. One accent, no exceptions. - Do use near-zero radius on buttons (~5px). The machined-corner detail is a deliberate engineering signal.
- Do set headings at 600 weight, not 700. Confident, not loud — the live hero h1 is 64px/600.
- Do separate cards with the
#e4e7echairline border rather than a fill change. White-on-white plus a hairline. - Do keep body type cool-gray
#353841, not pure black — it reads easier across long docs. - Do reserve the dark surface for code blocks (
#17181c). That’s the product’s natural home for dark. - Do use white text on the azure (
#ffffffon#0065da) — the standard inversion. - Do lean on whitespace and the strict 12-column grid for structure. Swiss discipline.
- Do enable the
⌘Kcommand palette / search — it’s a first-class control on a docs-heavy site. - Do keep semantic colors muted and reuse the azure for info states to hold the one-color discipline.
- Do retune the azure lighter (
~#4d97f0) in dark mode so it stays legible.
Don’ts
- Don’t introduce a second accent color. Biome runs on one blue; a competing hue dilutes the signal.
- Don’t add gradients — on the brand azure, on backgrounds, anywhere. The palette is flat by design.
- Don’t round buttons to 8–12px. The near-zero radius is intentional; rounding makes it read as a consumer SaaS.
- Don’t use pure black
#000000for headings. Headings are#17181c; body is#353841. The cool grays are the brand. - Don’t stack heavy drop shadows. Depth is near-flat — hairline borders and whitespace, not Material elevation.
- Don’t set headings at 700 in normal section chrome — reserve 700 for oversized marketing display only.
- Don’t warm up the palette. There is no warm gray, no cream — Biome is cool-neutral throughout.
- Don’t make the whole page dark by default. Biome offers dark mode via toggle, but light is the canonical first impression.
- Don’t swap in a branded display typeface. The neutral grotesk (Inter / system) is the point — the discipline is the voice.
- Don’t let the azure cover large areas. It’s an accent on CTAs, links, and active states — full-azure sections appear once per page at most.
15. Agent Prompt Guide
Quick Color Reference
bg: #ffffff
bg-soft: #f7f8fa
surface: #ffffff
text: #353841
text-strong: #17181c
text-muted: #6b7280
brand: #0065da
brand-strong: #0052b3
brand-soft: #e6f0fc
border: #e4e7ec
inverse-bg: #17181c
link: #0065daExample Component Prompts
- “Create a hero on a pure white
#ffffffcanvas: a 64px Inter 600 headline at -0.02em tracking in near-black#17181c, an 18px cool-gray#353841subhead, and a solid azure#0065da‘Get started’ button with white text, weight 600, ~5px radius, padding 10px 16px. No gradient, no shadow drama, strict left-aligned grid.” - “Design a feature card:
#ffffffbackground on the white canvas, 1px solid#e4e7echairline border, 12px radius, 24px padding, a 24px Inter 600 title in#17181c, and 16px#353841body. On hover, raise a 8% cool ambient shadow over 240ms — no vertical lift.” - “Build a dark code block:
#17181cbackground, light-gray#e4e7ectext, JetBrains Mono at 14px, 12px radius, 20px 24px padding, slashed-zero OpenType enabled, azure#0065dakeyword highlighting, and a copy button witharia-label='Copy code'.” - “Create an outline secondary button:
#ffffffbackground,#353841text, 1px solid#d0d5ddborder, ~5px radius, weight 600, padding 10px 16px. Hover fills to#f7f8fa. Place it beside the azure primary CTA.” - “Render the navigation: 64px height,
#ffffffccbackground with 8px backdrop-blur, 1px#e4e7ecbottom border, wordmark left, nav center, a⌘Ksearch field plus a ‘Get started’ azure CTA on the right. No shadow.” - “Add an info callout:
#e6f0fcazure-soft background, 1px solid#b3d4f5border, 12px radius, 20px padding, a 20px Inter 600 title and 16px body in#0052b3. Use for docs tips and notes.”
Iteration Guide
- Lock the white canvas first. If the background is off-white or tinted, it isn’t Biome. Pure
#ffffff, then iterate on everything else. - Count the accents. There should be exactly one — the azure
#0065da. If a second saturated color appears, remove it; the one-color discipline is the brand. - Check the button radius. If buttons are rounded to 8–12px, tighten them to ~5px. The near-zero corner is the engineering signal that separates Biome from consumer SaaS.
- Verify heading weight. Headings should be 600, not 700. If the page feels loud, drop the weight — the live hero h1 is 64px/600.
- Confirm the grays are cool. Body is
#353841, headings#17181c, muted#6b7280— all cool-neutral. If any gray reads warm, recolor it. - Audit depth. Cards should separate via the
#e4e7echairline border, not heavy shadows. If you see Material-style elevation, flatten it. - Keep the azure scarce. It belongs on CTAs, links, focus rings, and active states — roughly 5% of the visual area. Full-azure sections appear once per page at most.
- Add the dark theme as a clean inversion. If you ship dark mode, invert the same role tokens (canvas →
#17181c, azure →~#4d97f0) rather than inventing a new palette — the system is token-driven both ways.
Drop biome into your project, then ship the actual sections in an afternoon.
1 · install design
npx @webdesignhot/design-md add biome 2 · ship landing page
npx agentkit init --design biome