light · structured · sans · fintech · premium
DESIGN.md inspired by American Express
White-canvas premium-restraint membership UI — signature Amex Blue accent, near-black editorial type, concierge-tier hierarchy.
$ npx @webdesignhot/design-md add amex
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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. 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. Biome A white-canvas Rust toolchain page where one deep azure blue does all the work. 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.
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theme
mobile · 390 × 844
Tokens webdesignhot/0.1
- bg
#ffffff - surface
#ffffff - text AAA · 12.6
#333333 - brand AA · 5.0
#006fcf - on-brand
#ffffff - border AAA · 21.0
#000000
Ship faster than ever.
display-hero "Helvetica Neue" 80px w700 -0.03em
Ship faster than ever.
display-lg "Helvetica Neue" 56px w700 -0.02em
Ship faster than ever.
h1 "Helvetica Neue" 40px w700 -0.018em
Built for teams that ship.
h2 "Helvetica Neue" 32px w600 -0.012em
A complete kit
h3 "Helvetica Neue" 24px w600 -0.005em
The quick brown fox jumps over the lazy dog.
h4 "Helvetica Neue" 20px w600 0
The quick brown fox jumps over the lazy dog.
body-lg "Helvetica Neue" 18px w400 0
The quick brown fox jumps over the lazy dog.
body "Helvetica Neue" 16px w400 0
The quick brown fox jumps over the lazy dog.
body-sm "Helvetica Neue" 14px w400 0
OUR DESIGN SYSTEM
label "Helvetica Neue" 13px w500 0
OUR DESIGN SYSTEM
caption "Helvetica Neue" 12px w500 0.02em
- 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
- micro
2px - sm
4px - md
8px - lg
12px - xl
16px - pill
9999px
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Design roles 5/8 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 → —
- muted → —
- border → border
- ring → —
American Express's digital design language draws from a deep well of mid-century corporate-finance heritage and the print-statement aesthetic of bank-issued documentation. The Amex Blue (`#006fcf`) signature is itself a successor to the Centurion-blue brand portrait that has appeared on cards since the 1960s. The structural grammar — white canvas, hairline rules, geometric sans, restrained accent — is descended from the Swiss school of corporate identity (Helvetica, Massimo Vignelli, Saul Bass) translated into a financial-services context. Editorial-page peers like The Wall Street Journal and the Financial Times share Amex's commitment to typographic discipline over chromatic noise. Peer-network issuers (Visa, Mastercard) and the issuer-tier competitor Chase Sapphire anchor the cross-brand context — Amex sits closer to Visa's blue-and-white restraint than to Mastercard's warm editorial cream, while the Sapphire product surface confirms that "premium card art presented large on white" is the issuer convention Amex helped define. The brand's membership-privileges voice descends from the Karl Malden "Don't leave home without it" era (1975–1994) — concierge-tier, slightly aspirational, never trendy.
- Network peer — confirms the blue-and-white restraint as the global card-network visual convention; Amex differentiates with a deeper, more saturated mid-blue
- Network peer — Amex rejects Mastercard's warm-cream editorial register in favour of pure white and a tighter chromatic budget
- Issuer peer — Chase Sapphire's premium card-portrait-on-white surface is the closest contemporary analogue to Amex's product-card grid
- Editorial reference for typographic hierarchy and hairline-rule structure on white
- Type-family lineage — the Helvetica Neue-class system Amex specifies traces directly to Max Miedinger's 1957 Neue Haas Grotesk
- Mid-century discipline of one strong colour + one typeface + ruthless restraint — the parent grammar of the entire issuer-bank category
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---
name: American Express
tagline: White-canvas premium-restraint membership UI — signature Amex Blue accent, near-black editorial type, concierge-tier hierarchy.
updated_at: 2026-05-27T23:16:23.760Z
published_at: 2026-05-27T23:16:23.760Z
author: webdesignhot
source_url: https://www.americanexpress.com
spec: webdesignhot/0.1
quality: auto
featured: false
categories: [saas]
tags: [light, structured, sans, fintech, premium]
preview_swatch: ['#ffffff', '#006fcf', '#333333']
related: []
description: 'American Express''s digital surface reads like a 170-year-old financial institution that has chosen restraint over spectacle. The canvas is pure white (`#ffffff`) — not warm, not putty — because Amex wants the page to feel like a printed cardholder statement rather than an editorial magazine. Against that white, a single high-saturation accent — Amex Blue (`#006fcf`) — does all the chromatic work, appearing on primary CTAs, key links, and the centurion-blue card products. Type is set in a Helvetica Neue-class geometric sans at near-black (`#333333`) rather than pure black, lending the body copy a softness that pure `#000` would refuse. The product surface revolves around card portraiture: Platinum, Gold, and Green Card art presented at generous size, framed with the same hairline borders that suggest a banker''s ledger. The voice is membership-tier (concierge, privileges, benefits) — the page never says "sign up", it says "apply" or "become a Card Member". This is the visual grammar of a brand that built its premium signal across seven decades of "Don''t leave home without it" and now translates that authority into a calm, structured, blue-and-white web product surface.'
# 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
border: border
colors:
bg: '#ffffff'
surface: '#ffffff'
text: '#333333'
brand: '#006fcf'
on-brand: '#ffffff'
border: '#000000'
typography:
display:
family: '"Helvetica Neue", system-ui, -apple-system, sans-serif'
weights: [500, 600, 700]
body:
family: '"Helvetica Neue", system-ui, -apple-system, sans-serif'
weights: [400, 500, 600]
mono:
family: 'ui-monospace, SFMono-Regular, "SF Mono", Menlo, monospace'
weights: [400, 500]
scale:
display-hero: { size: 80, weight: 700, lineHeight: 1.0, tracking: '-0.03em', family: display }
display-lg: { size: 56, weight: 700, lineHeight: 1.05, tracking: '-0.02em', family: display }
h1: { size: 40, weight: 700, lineHeight: 1.1, tracking: '-0.018em', family: display }
h2: { size: 32, weight: 600, lineHeight: 1.2, tracking: '-0.012em', family: display }
h3: { size: 24, weight: 600, lineHeight: 1.25, tracking: '-0.005em', family: display }
h4: { size: 20, weight: 600, lineHeight: 1.3, tracking: '0', family: body }
body-lg: { size: 18, weight: 400, lineHeight: 1.55, tracking: '0', family: body }
body: { size: 16, weight: 400, lineHeight: 1.55, tracking: '0', family: body }
body-sm: { size: 14, weight: 400, lineHeight: 1.5, tracking: '0', family: body }
label: { size: 13, weight: 500, lineHeight: 1.4, tracking: '0', family: body }
caption: { size: 12, weight: 500, lineHeight: 1.4, tracking: '0.02em', family: body }
radius:
micro: 2
sm: 4
md: 8
lg: 12
xl: 16
pill: 9999
spacing:
base: 4
scale: [0, 4, 8, 12, 16, 24, 32, 48, 64, 96]
layout:
page-width: 1280
prose-width: 720
header-height: 64
motion:
ease-standard: 'cubic-bezier(0.4, 0, 0.2, 1)'
duration-fast: 150
duration-standard: 240
duration-slow: 320
reduced-motion: 'respects prefers-reduced-motion: reduce'
breakpoints:
mobile: 640
tablet: 1024
desktop: 1280
wide: 1536
components:
button-primary: { bg: brand, text: on-brand, padding: '10px 16px', radius: 8 }
button-ghost: { bg: transparent, text: text, border: border, padding: '10px 16px', radius: 8 }
card: { bg: surface, border: border, radius: 12, padding: 24 }
input: { bg: bg, border: border, text: text, radius: 8, padding: '8px 12px' }
lineage:
summary: 'American Express''s digital design language draws from a deep well of mid-century corporate-finance heritage and the print-statement aesthetic of bank-issued documentation. The Amex Blue (`#006fcf`) signature is itself a successor to the Centurion-blue brand portrait that has appeared on cards since the 1960s. The structural grammar — white canvas, hairline rules, geometric sans, restrained accent — is descended from the Swiss school of corporate identity (Helvetica, Massimo Vignelli, Saul Bass) translated into a financial-services context. Editorial-page peers like The Wall Street Journal and the Financial Times share Amex''s commitment to typographic discipline over chromatic noise. Peer-network issuers (Visa, Mastercard) and the issuer-tier competitor Chase Sapphire anchor the cross-brand context — Amex sits closer to Visa''s blue-and-white restraint than to Mastercard''s warm editorial cream, while the Sapphire product surface confirms that "premium card art presented large on white" is the issuer convention Amex helped define. The brand''s membership-privileges voice descends from the Karl Malden "Don''t leave home without it" era (1975–1994) — concierge-tier, slightly aspirational, never trendy.'
influences:
- { name: 'Visa', role: 'Network peer — confirms the blue-and-white restraint as the global card-network visual convention; Amex differentiates with a deeper, more saturated mid-blue', url: 'https://www.visa.com' }
- { name: 'Mastercard', role: 'Network peer — Amex rejects Mastercard''s warm-cream editorial register in favour of pure white and a tighter chromatic budget', url: 'https://www.mastercard.com' }
- { name: 'Chase', role: 'Issuer peer — Chase Sapphire''s premium card-portrait-on-white surface is the closest contemporary analogue to Amex''s product-card grid', url: 'https://www.chase.com' }
- { name: 'The Wall Street Journal', role: 'Editorial reference for typographic hierarchy and hairline-rule structure on white', url: 'https://www.wsj.com' }
- { name: 'Helvetica Now', role: 'Type-family lineage — the Helvetica Neue-class system Amex specifies traces directly to Max Miedinger''s 1957 Neue Haas Grotesk', url: 'https://www.monotype.com/fonts/helvetica-now' }
- { name: 'Saul Bass corporate identity work', role: 'Mid-century discipline of one strong colour + one typeface + ruthless restraint — the parent grammar of the entire issuer-bank category', url: 'https://www.aiga.org/design-journeys-saul-bass' }
---
## 1. Visual Theme & Atmosphere
American Express's digital surface reads like a 170-year-old financial institution that has chosen restraint over spectacle. The canvas is **pure white** (`#ffffff`) — not the warm putty-cream Mastercard prefers, not the soft off-white Visa drifts toward, but the unambiguous white of a printed cardholder statement. The page wants to feel like documentation from a private bank: clean, structured, slightly formal, never decorative. Against that white canvas, a single high-saturation accent — **Amex Blue** (`#006fcf`) — does almost all of the chromatic work, appearing on primary CTAs, key text links, the dot above the "i" in legacy logo treatments, and as the literal portrait colour of the Centurion-blue card products that sit at the centre of the marketing surface.
The dominant gesture is **product-as-portrait**. Card artwork (Platinum, Gold, Green, Centurion) is rendered at generous size, sometimes occupying half the viewport, framed by hairline rules or set on a generous white margin. Where Mastercard masks its imagery into perfect circles, Amex preserves the rectangular card-aspect-ratio (~1.59:1, the ISO/IEC 7810 ID-1 ratio) because the product itself is the rectangle. The card art is the brand — every visual choice on the page exists to set the card off rather than compete with it. This is why backgrounds default to white, why type is set in a geometric sans rather than a display serif, and why the only saturated colour in the chrome is the blue that already exists on the card itself.
Typography is a Helvetica Neue-class geometric sans, rendered at **`#333333`** rather than pure black — a softness that signals editorial care rather than maximum contrast. Headlines run at 600/700 weight with tight negative tracking (-1.8% to -3%), giving display text a confident density without shouting. Body copy holds at 16/400 with 1.55 line-height — comfortable, magazine-like, never cramped. The hierarchy is more aggressive than Mastercard's (an 80px display vs. Mastercard's 64px H1) because Amex headlines often carry membership-tier language ("The Platinum Card®", "Membership Has Its Privileges") that benefits from editorial scale.
The voice and chromatic budget are the brand's deepest commitments. Where SaaS-class fintechs (Stripe, Plaid) use rainbow gradients and where Mastercard uses cream-and-rust editorial warmth, Amex holds to **white + Amex Blue + near-black + a single grey ramp**, full stop. The chromatic restraint is itself the premium signal — it says "we don't need to decorate to be valuable." The membership-tier voice ("Card Member", "apply", "earn", "privileges") completes the picture: this is the visual grammar of a 1975 Karl Malden ad campaign ("Don't leave home without it") translated through six decades of brand discipline into a calm, structured, blue-and-white digital product surface that any cardholder would immediately recognize as Amex without needing to see the logo.
**Key Characteristics:**
- Pure white canvas (`#ffffff`) — never warmed, never tinted — a deliberate rejection of editorial-cream warmth
- Amex Blue (`#006fcf`) as the sole saturated UI colour, used on primary CTA, key links, and as the literal card-product portrait colour
- Near-black body type (`#333333`) — editorial softness, never `#000`
- Helvetica Neue-class geometric sans, single family across all hierarchy levels
- Card-as-portrait: rectangular ID-1 aspect-ratio card art presented at large scale with generous white margin
- Hairline 1px rules over shadows for delineation — bank-ledger structural language
- Membership-tier voice: "Card Member", "apply", "earn", "privileges" — never "sign up" or "get started"
- Three card-product family signal: Platinum (silver-metal portrait), Gold (champagne-metal portrait), Green (forest-green legacy portrait), with the Centurion Card as the apex
- Conservative radius scale (4–16px) — no oversized pill gestures, no extreme stadium frames
- Restrained motion: no scroll-jacking, no parallax-heavy heroes, no auto-playing video over content
- A single grey ramp (white → near-black) carries the entire neutral hierarchy
## 2. Color Palette & Roles
### Primary
- **Amex Blue** (`#006fcf`): the signature mid-blue used on primary CTAs, key text links, focus rings, and as the brand-portrait colour of legacy Amex card products. This is the load-bearing brand colour — used sparingly but always at full saturation
- **White** (`#ffffff`): the page canvas. Pure, untinted, the unambiguous default body background. Replacing this with off-white or cream breaks the Amex visual contract
### Brand & Dark
- **Near-Black Ink** (`#333333`): primary body and heading text colour. Slightly softer than pure black, gives prose an editorial readability that `#000` denies
- **Centurion Blue** (deep navy variant): the literal card-portrait colour of legacy Amex Blue Box and Centurion products — appears in product photography, not as a UI colour
- **Statement Black** (`#000000`): reserved for hairline borders, the wordmark, and the highest-contrast text states (e.g., the centurion product page header)
### Accent
- **Amex Blue** (`#006fcf`) is the only true UI accent. Amex does not maintain a secondary or tertiary accent — the brand's restraint is structural
### Surface & Background
- **Canvas White** (`#ffffff`): default page background, default card surface, default modal surface
- **Surface Soft Gray** (`#f7f8f9` or similar): occasional alternate surface for nested sections, comparison tables, or footer band — used sparingly and always cool-toned (never warm)
- **Surface Border Gray** (`#e6e6e6` or similar): the visual rule that separates table rows, card-product comparison cells, and footer column dividers
### Interactive
- **Link Default**: Amex Blue (`#006fcf`) — underlined on hover, no underline at rest in most marketing contexts
- **Link Hover**: slightly darker blue or underline-only treatment
- **Link Visited**: rarely styled — the brand suppresses visited state to preserve editorial uniformity
### Neutral Scale
- **`#000000`** — wordmark, hairline borders, occasional max-contrast text
- **`#333333`** — primary body text (the load-bearing text colour)
- **`#666666`** — secondary muted text, eyebrow labels, table secondary cells
- **`#999999`** — disabled text, placeholder text in inputs
- **`#cccccc`** — borders inside form inputs, soft dividers
- **`#e6e6e6`** — table row separators, footer column dividers
- **`#f7f8f9`** — alternate surface for nested sections (used very sparingly)
- **`#ffffff`** — canvas
### Surface & Borders
- **Border default**: `#000000` at 1px or `#e6e6e6` at 1px depending on context (form inputs use black; table rules use gray)
- **Border focus**: Amex Blue (`#006fcf`) at 2px ring
- **Border disabled**: `#cccccc` at 1px
### Shadow Colors
American Express uses shadows sparingly. The brand prefers **hairline borders over shadow elevation** — a 1px black or gray rule defines the boundary of a card product or input field, not a soft drop shadow. When shadows do appear, they are subtle: a 4–8px blur at ~8% opacity beneath a card-product hover state, never the dramatic 48px+ atmospheric halos Mastercard uses.
### Semantic
- **Success Green** (`#008767` or similar): rare confirmation states — "Application Submitted", "Card Activated"
- **Warning Amber** (`#b35900` or similar): rate-change notifications, advisory banners
- **Error Red** (`#b21f1f` or similar): form validation errors, payment failures
- **Info Blue**: reuses Amex Blue (`#006fcf`) — informational banners and tooltips
### Gradient System
Amex uses gradients in exactly one place: the **metallic card-portrait artwork** itself (Platinum's silver-to-pewter, Gold's champagne-to-bronze). The chrome UI never uses gradients — backgrounds are solid white, buttons are solid Amex Blue, dividers are solid hairlines. Importing a programmatic CSS gradient into the UI surface would visibly break the brand.
## 3. Typography Rules
### Font Family
- **Primary**: `"Helvetica Neue"` — the geometric sans Amex specifies for all hierarchy levels
- **Fallback stack**: `system-ui, -apple-system, sans-serif` — Apple's system stack as the safe fallback (which on macOS resolves to SF Pro, on Windows to Segoe UI)
- **Brand-licensed alternative**: Amex Sans is the proprietary cut used inside Amex-authored creative; on the public web the Helvetica Neue family is the practical default
### Hierarchy
| Role | Size | Weight | Line Height | Letter Spacing | Notes |
|------|------|--------|-------------|----------------|-------|
| Display hero | 80 | 700 | 1.0 (80px) | -0.03em (-3%) | Reserved for primary marketing pages — "The Platinum Card®", concierge campaign headlines |
| Display large | 56 | 700 | 1.05 (~59px) | -0.02em (-2%) | Secondary hero size — product category landing pages |
| H1 | 40 | 700 | 1.1 (44px) | -0.018em (-1.8%) | Top-of-page headline on standard content surfaces |
| H2 | 32 | 600 | 1.2 (~38px) | -0.012em (-1.2%) | Section headings |
| H3 | 24 | 600 | 1.25 (30px) | -0.005em (-0.5%) | Subsection / card-product titles |
| H4 | 20 | 600 | 1.3 (26px) | 0 | Inline section labels, table column headers |
| Body large | 18 | 400 | 1.55 (~28px) | 0 | Lead paragraphs, hero supporting copy |
| Body | 16 | 400 | 1.55 (~25px) | 0 | Default reading size — the load-bearing prose stop |
| Body small | 14 | 400 | 1.5 (21px) | 0 | Secondary body, table cells, helper text |
| Label | 13 | 500 | 1.4 (~18px) | 0 | Form labels, eyebrow micro-titles, badge text |
| Caption | 12 | 500 | 1.4 (~17px) | 0.02em (+2%) | Legal small-print, disclaimer copy, footer micro-copy |
### Principles
- **Weight discipline.** Use 400 for body, 500 for labels, 600 for subheads, 700 for displays. The system stops at 700 — Amex does not use 800/900 weights. The restraint preserves the editorial tone
- **Tight negative tracking on display sizes** (-1.2% to -3%) gives Amex headlines their confident density. Don't loosen this — it makes the page look generic
- **Near-black body** (`#333333`) — not pure black. The single most overlooked detail when reproducing the brand
- **Single typeface.** Resist the urge to introduce a serif accent for "premium". Amex's premium signal comes from restraint, not from typeface variety
- **1.55 line-height on body copy** — generous, magazine-like. Drop to 1.4–1.5 only on table cells and labels
- **No uppercase as a styling device.** Amex doesn't use uppercase tracking on section labels (in contrast to Mastercard's eyebrow). Section labels are sentence-case or title-case
- **Display sizes carry tightest tracking; body has none.** The tracking ramp inverts the size ramp — bigger sizes get tighter, body sits at 0
- **Use the Helvetica fallback honestly.** When Helvetica Neue isn't available, the system stack (SF Pro on macOS, Segoe UI on Windows) is a reasonable substitute. Don't introduce a third typeface to bridge the gap
### Note on Font Substitutes
Amex Sans and Helvetica Neue are both licensed/system-tier. When rebuilding without access:
- **Inter** at 400/500/600/700 works as a generic substitute; slightly taller x-height
- **Neue Haas Grotesk** is the direct lineage ancestor and pixel-perfect substitute when licensed
- **Helvetica Now** (Monotype's 2019 modernization) is the closest open-licensed match
- Preserve the **-1.2% to -3% tracking on displays** and **`#333333` body colour** — these are the load-bearing details
## 4. Component Stylings
### Buttons
**`button-primary`** — Amex Blue solid CTA
- Background: Amex Blue (`#006fcf`)
- Text: White (`#ffffff`) — pure white, not off-white
- Border: 0
- Radius: 8px (the system's md radius)
- Padding: 10px 16px (compact) or 12px 24px (comfortable)
- Font: Helvetica Neue 16/500
- Default: solid Amex Blue rectangle with crisp 8px corners
- Hover: slightly darker blue (`#005a9e` or similar) with no transform
- Active: subtle inward press, no scale gimmick
- Use: all primary marketing CTAs — "Apply Now", "Learn More", "Compare Cards"
**`button-ghost`** — Outlined secondary
- Background: transparent
- Text: Near-Black (`#333333`) or Amex Blue (`#006fcf`)
- Border: 1px solid `#000000` (or `#006fcf` for blue-text variant)
- Radius: 8px
- Padding: 10px 16px
- Font: Helvetica Neue 16/500
- Use: secondary actions paired with primary, or standalone utility actions
**`button-text-link`** — Inline link-style action
- Background: transparent
- Text: Amex Blue (`#006fcf`)
- Border: 0; underline appears on hover or sustained focus
- Padding: 0 (inline) or 8px 0 (block)
- Use: tertiary navigation, "View Details", "Compare", inline help links
**`button-large-cta`** — Hero-scale primary
- Background: Amex Blue (`#006fcf`)
- Text: White
- Radius: 8px (unchanged — Amex does not use larger radii for larger buttons)
- Padding: 16px 32px
- Font: Helvetica Neue 18/500
- Use: hero application CTAs, card-product apply buttons. Visually identical to button-primary but proportionally larger
### Cards & Containers
**`card-product`** — Card-art product tile (the core marketing surface)
- Background: White (`#ffffff`)
- Border: 1px solid `#e6e6e6` (hairline gray)
- Radius: 12px (lg)
- Padding: 24px
- Content: card-art image (ID-1 aspect ratio, ~340×215px on desktop) at top, product name in H3, benefit list in body-sm, primary CTA at bottom
- Shadow: none at rest; very subtle 0 4px 12px rgba(0,0,0,0.06) on hover
- Use: card-product grid (Platinum, Gold, Green, Business, Centurion, etc.)
**`card-feature`** — Benefit/feature explanation tile
- Background: White or `#f7f8f9` (alternate)
- Border: 1px solid `#e6e6e6` or none on alternate-surface variant
- Radius: 12px
- Padding: 24px
- Content: icon (24px Amex Blue line-icon) at top, H4 title, body-sm description
- Use: 3- or 4-up benefit grid below hero ("Concierge", "Travel", "Rewards", "Protection")
**`card-comparison`** — Side-by-side card comparison
- Background: White
- Border: 1px solid `#e6e6e6` per cell; cells share borders at intersections
- Radius: 0 (table-style; the outer container may carry 12px)
- Content: card-art header row, then alternating benefit rows
- Use: "Compare Cards" page — visually a styled table, structurally a grid
### Badges, Tags, Pills
**`badge-default`** — informational pill
- Background: `#f7f8f9`
- Text: `#333333`
- Border: 0
- Radius: 9999 (pill) or 4px (rectangle)
- Padding: 4px 10px
- Font: 13/500
- Use: "New", "Featured", category tags
**`badge-promo`** — limited-time / earned-rewards
- Background: Amex Blue (`#006fcf`)
- Text: White
- Use: "Limited Offer", "Bonus Points"
### Inputs & Forms
**`input-text`** — single-line text input
- Background: White (`#ffffff`)
- Text: `#333333`
- Border: 1px solid `#000000` (Amex uses high-contrast black input borders, not gray)
- Radius: 8px
- Padding: 8px 12px (compact) or 10px 14px (comfortable)
- Font: 16/400 (16px to prevent iOS zoom on focus)
- Focus: 2px Amex Blue outline ring
- Error: 1px solid `#b21f1f` border, helper text in same red below field
- Use: application forms, account login, support contact
**`input-select`** — dropdown
- Identical to input-text plus a downward chevron icon, right-aligned
- Native `<select>` styled to match the visual treatment
**`input-checkbox` / `input-radio`** — selection controls
- Default: 1px black border, transparent fill
- Checked: Amex Blue (`#006fcf`) fill with white checkmark/dot
- Size: 18×18px minimum
### Navigation
**Top navigation bar**
- Background: White (`#ffffff`)
- Border-bottom: 1px solid `#e6e6e6`
- Height: 64px (the system's header-height token)
- Content: Amex Blue Box logo (left), primary links centered, "Log In" + "Apply" actions right
- Link style: `#333333` at 16/500, no underline at rest, Amex Blue on hover
- Use: persistent global nav across all marketing surfaces
**Sub-navigation / Tab navigation**
- Background: White
- Border-bottom: 1px solid `#e6e6e6`
- Active tab: 2px Amex Blue underline below tab label
- Tab label: 16/500, 12px vertical / 16px horizontal padding
- Use: product category pages, account-management sub-sections
**Mobile navigation**
- Hamburger menu icon (left), Amex logo (center), profile/login icon (right)
- Opens into full-screen overlay with primary links stacked vertically
- Background: White; Amex Blue accent on active state
## 5. Layout Principles
### Spacing System
- **Base unit**: 4px (the canonical fintech base — divisible into the 16px body grid)
- **Scale**: 0 / 4 / 8 / 12 / 16 / 24 / 32 / 48 / 64 / 96 (the powers-of-4 progression)
- **Section vertical padding**: ~64–96px between major sections on desktop; ~32–48px on mobile
- **Card internal padding**: 24px on desktop, 16px on mobile
- **Form field spacing**: 16px between fields, 24px between field groups
### Grid & Container
- **Max content width**: 1280px (the page-width token) centered, with 24–48px horizontal gutter
- **Prose max width**: 720px — reading-comfort cap for long-form content (terms, help articles)
- **Column patterns**:
- 12-column implied grid for marketing layouts
- 3-up card-product grid on desktop, 2-up tablet, 1-up mobile
- 4-up benefit grid on desktop, 2-up tablet, 1-up mobile
- 2-column hero (headline left, supporting copy or card art right) on desktop
### Whitespace Philosophy
Amex treats whitespace as **structural premium signal**. Card-product portraits are surrounded by generous white margin (often 64–96px on desktop) so the product photo can breathe. The brand believes that crowding the card art with adjacent copy diminishes its premium signal — the empty space is the message. This is the opposite of dashboard-class UI, which packs the viewport.
### Section Cadence
The standard amex.com card-product page scroll pattern:
1. Top navigation bar (sticky on scroll)
2. Hero with H1 headline + card-art portrait (2-column)
3. Benefit grid (4-up icon tiles)
4. Rewards / earning structure explanation (2-up alternating image-text)
5. Comparison table or "View all cards" CTA
6. Apply CTA section (centered headline + primary button)
7. Footer (multi-column link grid on near-black or white surface)
## 6. Shapes & Radius Scale
| Tier | Radius | Use |
|------|--------|-----|
| Micro | 2px | Inline tags, checkbox/radio corners |
| Standard (sm) | 4px | Form micro-elements, table cells, badge corners |
| Comfortable (md) | 8px | Buttons (primary, ghost, large), input fields — the system's load-bearing button radius |
| Relaxed (lg) | 12px | Card-product tiles, feature cards, modal corners |
| Large (xl) | 16px | Hero containers, oversized feature panels |
| Pill | 9999px | Promo badges, status pills — used sparingly |
The Amex radius scale is **conservatively progressive**. Unlike Mastercard's "skip the middle" approach (jumping from 6 to 20 to 999), Amex moves through every step: 2, 4, 8, 12, 16, pill. The progression mirrors a bank-form-builder's expectation — each interactive element gets a calm, slightly-rounded corner, with no oversized stadium gestures and no flat 0-radius elements (except the page itself and table cells in dense data).
## 7. Depth & Elevation
| Level | Treatment | Use |
|-------|-----------|-----|
| 0 | No shadow, no border | Page canvas, default text |
| 0.5 | 1px hairline border (`#e6e6e6` or `#000000`) | Card products, input fields, table rules — the system's preferred delineation |
| 1 | `0 2px 4px rgba(0,0,0,0.04)` | Sticky header on scroll — barely visible |
| 2 | `0 4px 12px rgba(0,0,0,0.06)` | Card-product hover state, dropdown menus |
| 3 | `0 8px 24px rgba(0,0,0,0.10)` | Modal dialogs, overlay menus |
### Shadow Philosophy
American Express prefers **hairline borders over shadow elevation**. The single most distinctive trait of the system is that a card product at rest has no shadow — only a 1px gray border. Hover state introduces a barely-visible shadow (4% opacity) without any transform. This is a bank-statement-document aesthetic: things are delineated by lines, not by light. The decision is intentional — soft shadows would import a SaaS-class softness that the brand rejects.
### Decorative Depth
- **Card-art photography** carries its own metallic gradient (Platinum's silver, Gold's champagne) — this is the only decorative depth in the system
- **Sticky header shadow** on scroll provides the only ambient elevation cue
- **Modal scrims** use a subtle `rgba(0,0,0,0.4)` backdrop to focus attention without darkening the entire page
## 8. Interaction & Motion
### Easing Curves
- **Standard**: `cubic-bezier(0.4, 0, 0.2, 1)` — the Material-standard ease for nearly all transitions
- The brand does not maintain a separate "emphasized" or "expressive" curve — the standard easing covers the entire motion budget
### Duration Buckets
- **Fast** (150ms): button hover colour shifts, link underline appearance
- **Standard** (240ms): card hover shadow lift, dropdown menu open
- **Slow** (320ms): modal dialog open, drawer slide-in
- The brand does not use cinematic durations (600ms+) — motion is functional, never theatrical
### Per-Component Motion
**Primary button**
- Hover: background colour shifts from `#006fcf` → `#005a9e` over 150ms
- Active: no scale, no rotation — Amex resists button "press" gimmicks
- Focus: 2px Amex Blue outline ring appears instantly (no transition)
**Card-product tile**
- Hover: shadow fades in from 0 → `0 4px 12px rgba(0,0,0,0.06)` over 240ms
- No transform, no scale, no rotation — the card stays put
**Top navigation**
- On scroll past 64px: subtle drop shadow fades in over 150ms; navigation height stays at 64px
- Mobile menu: 320ms slide-in from right with `cubic-bezier(0.4, 0, 0.2, 1)` ease
**Dropdown menus**
- Open: 240ms fade + 8px translate-up combo
- Close: 150ms fade-out
### Page Transitions
- Standard browser-default page transitions (no SPA-style fade or slide)
- Skeleton loaders for data-dense surfaces (account dashboard, transaction list)
### Reduced Motion Strategy
`@media (prefers-reduced-motion: reduce)`:
- All shadow transitions become instant
- All translate-based animations become opacity-only fades over 100ms
- Modal open/close becomes instant
- Skeleton loaders remain (they aid comprehension, not decoration)
## 9. Accessibility & A11y
### Contrast Pairs
| Pair | Approximate Ratio | WCAG Level |
|------|-------------------|------------|
| `#333333` text on `#ffffff` bg | 12.6:1 | AAA |
| `#ffffff` text on `#006fcf` Amex Blue button | 4.7:1 | AA at body, AAA at large |
| `#006fcf` link on `#ffffff` bg | 4.6:1 | AA at body |
| `#666666` muted on `#ffffff` bg | 5.7:1 | AA at body |
| `#999999` disabled on `#ffffff` bg | 2.85:1 | Fails for body, allowed only as disabled state visual |
| `#333333` text on `#f7f8f9` alt-surface | 12.0:1 | AAA |
### Focus Indicators
- 2px Amex Blue (`#006fcf`) outline ring with 2px outline-offset
- Applied to all focusable elements: nav links, buttons, form fields, card-product tiles, footer links
- The ring colour uses Amex Blue rather than browser-default blue, maintaining chromatic consistency
### ARIA Patterns
- Card-product tiles use `role="link"` with descriptive `aria-label` (e.g., "Apply for The Platinum Card from American Express")
- Dropdown menus follow the ARIA combobox or menu pattern depending on whether they accept input
- Form fields use explicit `<label for="">` associations; placeholder text never substitutes for a label
- Modal dialogs use `role="dialog"` with `aria-modal="true"` and focus-trap
- Card-art images carry meaningful `alt` text (e.g., "The Platinum Card from American Express, metal finish")
- Decorative card-art photography on landing hero uses `alt=""` when the product name is announced separately
### Keyboard Navigation
- Tab cycles: skip-link → top nav (left → center → right) → hero CTA → benefit cards → comparison cards → apply CTA → footer columns
- Skip-link present at very top: "Skip to main content"
- Esc closes modal dialogs and mobile menu overlay
- Arrow keys navigate within tab navigation and dropdown menus
- Enter/Space activates buttons and links
### Screen Reader Hints
- Card-product images supply alt text describing the physical card (finish, primary colour, product name)
- Form errors are announced via `aria-live="polite"` region
- Loading states announce "Loading account information" rather than silent skeleton placeholders
- Currency values use locale-aware formatting and are announced as natural language ("twelve thousand five hundred dollars" via aria-label override when context demands it)
### Reduced Motion Handling
Detailed in §8. The system respects `prefers-reduced-motion: reduce` and converts translate-based animations to opacity-only fades.
## 10. Responsive Behavior
### Breakpoints
| Name | Width | Key Changes |
|------|-------|-------------|
| Mobile | ≤640px | Hamburger menu replaces full nav; hero stacks vertically (headline above card art); card-product grid becomes 1-up; benefit grid becomes 1-up; display-hero drops from 80 → ~44px; padding compresses to 16–24px |
| Tablet | 641–1024px | Hamburger or condensed nav depending on context; card-product grid 2-up; benefit grid 2-up; hero stays 2-column at slightly reduced scale |
| Desktop | 1025–1280px | Full nav with all primary links; card-product grid 3-up; benefit grid 4-up; hero 2-column at full scale |
| Wide | ≥1281px | Content max-width caps at 1280px; gutters grow symmetrically; card-art photography may grow up to ~400px on display-hero pages |
### Touch Targets
All interactive elements meet or exceed the 44×44px minimum. Buttons at 10px padding produce ~40–44px height — at 16px-class body type this lands at exactly 44px. Form fields are 40px+ tall. Card-product tiles are entire tappable surfaces (typically 300px+ wide × 400px+ tall on mobile).
### Collapsing Strategy
- **Top nav**: full horizontal → hamburger overlay. The Amex Blue Box logo remains visible at all breakpoints
- **Hero**: 2-column (headline + card art) → stacked (headline above card art)
- **Card-product grid**: 3-up → 2-up → 1-up
- **Benefit grid**: 4-up → 2-up → 1-up
- **Comparison table**: horizontal scroll on mobile (preserves cell alignment) rather than collapsing to vertical
- **Footer**: 4–6 columns → accordion with chevron toggles per section on mobile
### Image Behavior
Card-art portraits scale proportionally, maintaining the ID-1 aspect ratio at every breakpoint. Photography uses `srcset` with at minimum 1x and 2x density, plus breakpoint-specific widths. Lazy loading is standard with a low-priority blur-up placeholder for below-fold imagery; hero card-art is eager-loaded.
## 11. Content & Voice
### Tone
The voice is **premium-membership concierge**. Amex writes like a private bank that has decided to publish a magazine — formal, slightly aspirational, never trendy, never excited. The brand voice is the calm of a six-decade trusted institution translated into prose: confident, considered, never apologetic.
### Microcopy Patterns
- **Button verbs**: "Apply Now", "Learn More", "Compare Cards", "Sign In", "View Benefits", "Earn Rewards" — institutional and membership-tier, never "Get Started" or "Sign Up Free"
- **Headline structure**: editorial declarations centered on membership value ("The Platinum Card. Engineered for the way you live.", "Membership Has Its Privileges")
- **Body copy**: confident assertions backed by specific benefit data; medium sentences with editorial cadence; product names always carry the ® and "from American Express" suffix in formal contexts
- **Error messages**: "We weren't able to complete your request. Please try again or call Customer Service at 1-800-XXX-XXXX." — calm, includes a path to human help
- **Success confirmations**: "Your application has been submitted. A decision will be available within minutes." — terse, professional, sets a clear expectation
### Empty States
Empty content blocks say "No transactions to display" rather than "Nothing here yet!" — the brand never breaks character with playful empty-state copy. Empty states often include a soft CTA to take a meaningful next step ("Make your first purchase to start earning rewards").
### CTA Verb Conventions
American Express uses institutional and membership-tier verbs:
- Apply Now
- Learn More
- Compare Cards
- View Benefits
- Sign In
- Become a Card Member
- Earn Rewards
- Redeem Points
It does *not* use:
- Get Started (too SaaS-y)
- Sign Up Free (too trial-product)
- Try Now (too aggressive)
- Join! (too excited; punctuation rejected)
- Buy Now (Amex never "sells" — Cards are "issued")
## 12. Dark Mode & Theming
**American Express is light-only — no dark mode variant on the public marketing surface.** The brand commits to pure white canvas as its primary surface because that white is the printed-statement aesthetic the institution is built around. Dark mode would invert the bank-document grammar that defines the brand.
The authenticated cardholder dashboard may carry a system-preference dark mode for accessibility, but the marketing surface — the card-product pages, the application flow, the membership-rewards portal — holds to white-canvas light.
### Theming Notes for Derivatives
If you are adapting this system for a brand that needs a true dark mode:
- Swap `#ffffff` canvas → `#0d1b2a` (deep navy — preserves the financial-services register; pure black would feel too SaaS)
- Swap `#333333` text → `#e6e6e6` (off-white text on deep navy)
- Swap `#e6e6e6` borders → `#1f2c3d` (slightly lifted navy)
- Amex Blue (`#006fcf`) holds — it reads well on both white and deep navy. Increase saturation to `#1a85d8` if needed for AA contrast on the new dark canvas
- Card-art photography: shift card portraits to their metal/dark variants (Platinum metal stays; Centurion's black-on-black becomes a defining product portrait)
## 13. Lineage & Influences
American Express's design language draws from:
- **Mid-century corporate-finance heritage** — the bank-statement aesthetic of paper cardholder bills, the engraving-quality of the Centurion portrait that has anchored the brand since the 1960s
- **The Swiss school of corporate identity** — Helvetica, Massimo Vignelli, Saul Bass — translated into a financial-services context. The discipline of one strong colour + one typeface + ruthless restraint
- **Editorial print design** (The Wall Street Journal, Financial Times) — typographic hierarchy and hairline-rule structure on white; restraint as the premium signal
- **The Karl Malden "Don't leave home without it" campaigns (1975–1994)** — concierge-tier voice, slightly aspirational, corporate-formal. The brand's verbal grammar descends directly from this era
- **Network-peer card identity conventions** — Visa, Mastercard, and Chase Sapphire all share the white-canvas/saturated-accent grammar. Amex sits closer to Visa's blue-and-white restraint than to Mastercard's warm-cream editorial register
- **The ISO/IEC 7810 ID-1 card format itself** — the 85.6 × 53.98 mm rectangle that defines a credit card globally is the brand's most reproduced shape; the visual system exists to set this rectangle off
What American Express rejects:
- Editorial-cream warmth (Mastercard's territory)
- SaaS-class gradient hero backgrounds
- Glassmorphism, frosted-glass, neumorphism — all softness gimmicks
- Display serifs as "premium signal" — Amex's premium comes from typographic restraint, not from typeface variety
- Oversized stadium-radius gestures and full-pill nav containers
- Rainbow-accent palettes (Stripe's, Plaid's territory) — Amex's single-accent budget is the brand's commitment
- Trendy microinteractions (button bounces, magnetic hover) — motion is functional, never decorative
### Named Influences
- Visa — https://www.visa.com
- Mastercard — https://www.mastercard.com
- Chase — https://www.chase.com
- The Wall Street Journal editorial design — https://www.wsj.com
- Helvetica Now (Monotype) — https://www.monotype.com/fonts/helvetica-now
- Saul Bass corporate identity work — https://www.aiga.org/design-journeys-saul-bass
## 14. Do's and Don'ts
### Do
- Use pure white (`#ffffff`) as the page canvas — never warm cream, never off-white
- Use `#333333` for body text — never pure black
- Reserve Amex Blue (`#006fcf`) for primary CTAs, key links, and focus rings — the only saturated UI colour
- Render card-product artwork at generous size with at least 64px of surrounding whitespace on desktop
- Set headlines in Helvetica Neue weight 600/700 with -1.2% to -3% letter-spacing
- Prefer 1px hairline borders over soft drop shadows for card-product delineation
- Use the conservative radius scale (4/8/12/16) — every interactive element gets a calm corner
- Use 12-16px padding on buttons; never inflate to fashion-pill dimensions
- Keep the chromatic budget tight: white + Amex Blue + near-black + single grey ramp
- Use membership-tier voice: "Card Member", "apply", "earn", "privileges"
- Preserve the ID-1 rectangular aspect ratio on card-product imagery — never crop card art to a circle or pill
- Default to native form controls with thin styling rather than fully-custom replacements
### Don't
- Don't use warm cream as a body background — that's Mastercard's territory, and importing it dilutes Amex's clean-white premium signal
- Don't use Amex Blue as a body or surface colour — it's an accent, never a fill
- Don't introduce a secondary saturated accent (no orange, no green, no purple) — the single-accent rule is the brand
- Don't crop card-product photography to circles, pills, or oversized rounded rectangles — preserve the literal card aspect ratio
- Don't use display-serif fonts for "premium" — Amex's premium signal comes from typographic restraint, not from typeface variety
- Don't use uppercase styling on section labels or eyebrows — Amex writes in sentence/title case throughout
- Don't apply soft drop shadows everywhere — prefer hairline borders, reserve shadows for hover and modal states only
- Don't use SaaS verbs ("Get Started", "Sign Up Free", "Try Now") — use membership verbs ("Apply Now", "Become a Card Member")
- Don't use 40px+ stadium radii or full-pill button shapes — the system stops at 16px and 9999px (the latter reserved for tiny badges only)
- Don't auto-play video over hero content — Amex motion is functional, not theatrical
- Don't pack the card-product grid edge-to-edge — generous whitespace around each tile is the premium signal
- Don't use pure black (`#000000`) for body text — it reads as a debugging colour against `#333333`'s editorial softness
## 15. Agent Prompt Guide
### Quick Color Reference
- Primary CTA: Amex Blue (`#006fcf`)
- Background: White (`#ffffff`)
- Heading text: Near-Black (`#333333`)
- Body text: Near-Black (`#333333`)
- Muted text: Mid-Gray (`#666666`)
- Disabled text: Light Gray (`#999999`)
- Border (input): Black (`#000000`) at 1px
- Border (card / table): Gray (`#e6e6e6`) at 1px
- Link: Amex Blue (`#006fcf`)
- Focus ring: Amex Blue (`#006fcf`) at 2px with 2px offset
- Alternate surface: Cool Gray (`#f7f8f9`)
- Footer/dark: deep navy or near-black with white text
### Example Component Prompts
- "Create a primary CTA button: Amex Blue (`#006fcf`) background, white text, 8px border-radius, 10px vertical and 16px horizontal padding, Helvetica Neue 16px weight 500. On hover, shift background to `#005a9e` over 150ms with no transform."
- "Design a card-product tile 320px wide × 480px tall: white background, 1px solid `#e6e6e6` border, 12px border-radius, 24px internal padding. Place card-art portrait (ID-1 aspect ratio, ~272×170px) at top with 24px bottom margin, then H3 product name in `#333333`, three benefit lines in body-small `#666666`, and a full-width Amex Blue CTA button at the bottom."
- "Build a top navigation bar: white background, 1px solid `#e6e6e6` bottom border, 64px height. Amex Blue Box logo at the left, four primary links centred in `#333333` weight 500 with 32px gap, then 'Log In' link and 'Apply' Amex Blue CTA at the right. On scroll past 64px, fade in a subtle `0 2px 4px rgba(0,0,0,0.04)` shadow over 150ms."
- "Create a benefit grid: 4-up on desktop (1280px container, 24px gutter), 2-up tablet, 1-up mobile. Each cell uses white background with no border, 24px padding, a 24px Amex Blue line-icon at the top, an H4 title in `#333333`, and a body-small description in `#666666` below."
- "Design a form field: 40px-tall single-line text input, white background, 1px solid `#000000` border, 8px border-radius, 8px vertical / 12px horizontal padding, Helvetica Neue 16/400 in `#333333`. Label sits above the field in 13px weight 500. On focus, swap to 2px Amex Blue (`#006fcf`) outline ring with 2px offset. On validation error, swap border to 1px `#b21f1f` with red helper text below."
- "Create a footer: deep-navy or near-black background, white text, 4–6 column link grid with sentence-case column headers in 14px weight 600. Include the Amex Blue Box logo at the top-left, a country/region selector pill at the bottom-right, and a horizontal hairline divider above a copyright + legal-links bottom row."
### Iteration Guide
When refining existing screens generated with this design system:
1. Focus on one component at a time — Amex's discipline is delineation, not orchestration
2. Default backgrounds to pure white (`#ffffff`), never tinted — this single change shifts the entire mood toward Amex
3. Use `#333333` for body text — pure black breaks the editorial register
4. Hold the chromatic budget to white + Amex Blue (`#006fcf`) + near-black + single grey ramp — if a third saturated colour appears, push it out
5. Prefer 1px hairline borders over drop shadows for delineation — the bank-document aesthetic is structural
6. Keep buttons at 8px radius — resist the urge to inflate to pill or stadium dimensions
7. Set headlines at 600/700 weight with -1.2% to -3% letter-spacing — looser tracking makes the page look generic
8. Use membership-tier verbs in CTAs: "Apply Now", "Compare Cards", "Become a Card Member" — never SaaS verbs
---
*Theme-toggle audit: score=2, signals=[prefers-color-scheme-css]*
1. Visual Theme & Atmosphere
American Express’s digital surface reads like a 170-year-old financial institution that has chosen restraint over spectacle. The canvas is pure white (#ffffff) — not the warm putty-cream Mastercard prefers, not the soft off-white Visa drifts toward, but the unambiguous white of a printed cardholder statement. The page wants to feel like documentation from a private bank: clean, structured, slightly formal, never decorative. Against that white canvas, a single high-saturation accent — Amex Blue (#006fcf) — does almost all of the chromatic work, appearing on primary CTAs, key text links, the dot above the “i” in legacy logo treatments, and as the literal portrait colour of the Centurion-blue card products that sit at the centre of the marketing surface.
The dominant gesture is product-as-portrait. Card artwork (Platinum, Gold, Green, Centurion) is rendered at generous size, sometimes occupying half the viewport, framed by hairline rules or set on a generous white margin. Where Mastercard masks its imagery into perfect circles, Amex preserves the rectangular card-aspect-ratio (~1.59:1, the ISO/IEC 7810 ID-1 ratio) because the product itself is the rectangle. The card art is the brand — every visual choice on the page exists to set the card off rather than compete with it. This is why backgrounds default to white, why type is set in a geometric sans rather than a display serif, and why the only saturated colour in the chrome is the blue that already exists on the card itself.
Typography is a Helvetica Neue-class geometric sans, rendered at #333333 rather than pure black — a softness that signals editorial care rather than maximum contrast. Headlines run at 600/700 weight with tight negative tracking (-1.8% to -3%), giving display text a confident density without shouting. Body copy holds at 16/400 with 1.55 line-height — comfortable, magazine-like, never cramped. The hierarchy is more aggressive than Mastercard’s (an 80px display vs. Mastercard’s 64px H1) because Amex headlines often carry membership-tier language (“The Platinum Card®”, “Membership Has Its Privileges”) that benefits from editorial scale.
The voice and chromatic budget are the brand’s deepest commitments. Where SaaS-class fintechs (Stripe, Plaid) use rainbow gradients and where Mastercard uses cream-and-rust editorial warmth, Amex holds to white + Amex Blue + near-black + a single grey ramp, full stop. The chromatic restraint is itself the premium signal — it says “we don’t need to decorate to be valuable.” The membership-tier voice (“Card Member”, “apply”, “earn”, “privileges”) completes the picture: this is the visual grammar of a 1975 Karl Malden ad campaign (“Don’t leave home without it”) translated through six decades of brand discipline into a calm, structured, blue-and-white digital product surface that any cardholder would immediately recognize as Amex without needing to see the logo.
Key Characteristics:
- Pure white canvas (
#ffffff) — never warmed, never tinted — a deliberate rejection of editorial-cream warmth - Amex Blue (
#006fcf) as the sole saturated UI colour, used on primary CTA, key links, and as the literal card-product portrait colour - Near-black body type (
#333333) — editorial softness, never#000 - Helvetica Neue-class geometric sans, single family across all hierarchy levels
- Card-as-portrait: rectangular ID-1 aspect-ratio card art presented at large scale with generous white margin
- Hairline 1px rules over shadows for delineation — bank-ledger structural language
- Membership-tier voice: “Card Member”, “apply”, “earn”, “privileges” — never “sign up” or “get started”
- Three card-product family signal: Platinum (silver-metal portrait), Gold (champagne-metal portrait), Green (forest-green legacy portrait), with the Centurion Card as the apex
- Conservative radius scale (4–16px) — no oversized pill gestures, no extreme stadium frames
- Restrained motion: no scroll-jacking, no parallax-heavy heroes, no auto-playing video over content
- A single grey ramp (white → near-black) carries the entire neutral hierarchy
2. Color Palette & Roles
Primary
- Amex Blue (
#006fcf): the signature mid-blue used on primary CTAs, key text links, focus rings, and as the brand-portrait colour of legacy Amex card products. This is the load-bearing brand colour — used sparingly but always at full saturation - White (
#ffffff): the page canvas. Pure, untinted, the unambiguous default body background. Replacing this with off-white or cream breaks the Amex visual contract
Brand & Dark
- Near-Black Ink (
#333333): primary body and heading text colour. Slightly softer than pure black, gives prose an editorial readability that#000denies - Centurion Blue (deep navy variant): the literal card-portrait colour of legacy Amex Blue Box and Centurion products — appears in product photography, not as a UI colour
- Statement Black (
#000000): reserved for hairline borders, the wordmark, and the highest-contrast text states (e.g., the centurion product page header)
Accent
- Amex Blue (
#006fcf) is the only true UI accent. Amex does not maintain a secondary or tertiary accent — the brand’s restraint is structural
Surface & Background
- Canvas White (
#ffffff): default page background, default card surface, default modal surface - Surface Soft Gray (
#f7f8f9or similar): occasional alternate surface for nested sections, comparison tables, or footer band — used sparingly and always cool-toned (never warm) - Surface Border Gray (
#e6e6e6or similar): the visual rule that separates table rows, card-product comparison cells, and footer column dividers
Interactive
- Link Default: Amex Blue (
#006fcf) — underlined on hover, no underline at rest in most marketing contexts - Link Hover: slightly darker blue or underline-only treatment
- Link Visited: rarely styled — the brand suppresses visited state to preserve editorial uniformity
Neutral Scale
#000000— wordmark, hairline borders, occasional max-contrast text#333333— primary body text (the load-bearing text colour)#666666— secondary muted text, eyebrow labels, table secondary cells#999999— disabled text, placeholder text in inputs#cccccc— borders inside form inputs, soft dividers#e6e6e6— table row separators, footer column dividers#f7f8f9— alternate surface for nested sections (used very sparingly)#ffffff— canvas
Surface & Borders
- Border default:
#000000at 1px or#e6e6e6at 1px depending on context (form inputs use black; table rules use gray) - Border focus: Amex Blue (
#006fcf) at 2px ring - Border disabled:
#ccccccat 1px
Shadow Colors
American Express uses shadows sparingly. The brand prefers hairline borders over shadow elevation — a 1px black or gray rule defines the boundary of a card product or input field, not a soft drop shadow. When shadows do appear, they are subtle: a 4–8px blur at ~8% opacity beneath a card-product hover state, never the dramatic 48px+ atmospheric halos Mastercard uses.
Semantic
- Success Green (
#008767or similar): rare confirmation states — “Application Submitted”, “Card Activated” - Warning Amber (
#b35900or similar): rate-change notifications, advisory banners - Error Red (
#b21f1for similar): form validation errors, payment failures - Info Blue: reuses Amex Blue (
#006fcf) — informational banners and tooltips
Gradient System
Amex uses gradients in exactly one place: the metallic card-portrait artwork itself (Platinum’s silver-to-pewter, Gold’s champagne-to-bronze). The chrome UI never uses gradients — backgrounds are solid white, buttons are solid Amex Blue, dividers are solid hairlines. Importing a programmatic CSS gradient into the UI surface would visibly break the brand.
3. Typography Rules
Font Family
- Primary:
"Helvetica Neue"— the geometric sans Amex specifies for all hierarchy levels - Fallback stack:
system-ui, -apple-system, sans-serif— Apple’s system stack as the safe fallback (which on macOS resolves to SF Pro, on Windows to Segoe UI) - Brand-licensed alternative: Amex Sans is the proprietary cut used inside Amex-authored creative; on the public web the Helvetica Neue family is the practical default
Hierarchy
| Role | Size | Weight | Line Height | Letter Spacing | Notes |
|---|---|---|---|---|---|
| Display hero | 80 | 700 | 1.0 (80px) | -0.03em (-3%) | Reserved for primary marketing pages — “The Platinum Card®”, concierge campaign headlines |
| Display large | 56 | 700 | 1.05 (~59px) | -0.02em (-2%) | Secondary hero size — product category landing pages |
| H1 | 40 | 700 | 1.1 (44px) | -0.018em (-1.8%) | Top-of-page headline on standard content surfaces |
| H2 | 32 | 600 | 1.2 (~38px) | -0.012em (-1.2%) | Section headings |
| H3 | 24 | 600 | 1.25 (30px) | -0.005em (-0.5%) | Subsection / card-product titles |
| H4 | 20 | 600 | 1.3 (26px) | 0 | Inline section labels, table column headers |
| Body large | 18 | 400 | 1.55 (~28px) | 0 | Lead paragraphs, hero supporting copy |
| Body | 16 | 400 | 1.55 (~25px) | 0 | Default reading size — the load-bearing prose stop |
| Body small | 14 | 400 | 1.5 (21px) | 0 | Secondary body, table cells, helper text |
| Label | 13 | 500 | 1.4 (~18px) | 0 | Form labels, eyebrow micro-titles, badge text |
| Caption | 12 | 500 | 1.4 (~17px) | 0.02em (+2%) | Legal small-print, disclaimer copy, footer micro-copy |
Principles
- Weight discipline. Use 400 for body, 500 for labels, 600 for subheads, 700 for displays. The system stops at 700 — Amex does not use 800/900 weights. The restraint preserves the editorial tone
- Tight negative tracking on display sizes (-1.2% to -3%) gives Amex headlines their confident density. Don’t loosen this — it makes the page look generic
- Near-black body (
#333333) — not pure black. The single most overlooked detail when reproducing the brand - Single typeface. Resist the urge to introduce a serif accent for “premium”. Amex’s premium signal comes from restraint, not from typeface variety
- 1.55 line-height on body copy — generous, magazine-like. Drop to 1.4–1.5 only on table cells and labels
- No uppercase as a styling device. Amex doesn’t use uppercase tracking on section labels (in contrast to Mastercard’s eyebrow). Section labels are sentence-case or title-case
- Display sizes carry tightest tracking; body has none. The tracking ramp inverts the size ramp — bigger sizes get tighter, body sits at 0
- Use the Helvetica fallback honestly. When Helvetica Neue isn’t available, the system stack (SF Pro on macOS, Segoe UI on Windows) is a reasonable substitute. Don’t introduce a third typeface to bridge the gap
Note on Font Substitutes
Amex Sans and Helvetica Neue are both licensed/system-tier. When rebuilding without access:
- Inter at 400/500/600/700 works as a generic substitute; slightly taller x-height
- Neue Haas Grotesk is the direct lineage ancestor and pixel-perfect substitute when licensed
- Helvetica Now (Monotype’s 2019 modernization) is the closest open-licensed match
- Preserve the -1.2% to -3% tracking on displays and
#333333body colour — these are the load-bearing details
4. Component Stylings
Buttons
button-primary — Amex Blue solid CTA
- Background: Amex Blue (
#006fcf) - Text: White (
#ffffff) — pure white, not off-white - Border: 0
- Radius: 8px (the system’s md radius)
- Padding: 10px 16px (compact) or 12px 24px (comfortable)
- Font: Helvetica Neue 16/500
- Default: solid Amex Blue rectangle with crisp 8px corners
- Hover: slightly darker blue (
#005a9eor similar) with no transform - Active: subtle inward press, no scale gimmick
- Use: all primary marketing CTAs — “Apply Now”, “Learn More”, “Compare Cards”
button-ghost — Outlined secondary
- Background: transparent
- Text: Near-Black (
#333333) or Amex Blue (#006fcf) - Border: 1px solid
#000000(or#006fcffor blue-text variant) - Radius: 8px
- Padding: 10px 16px
- Font: Helvetica Neue 16/500
- Use: secondary actions paired with primary, or standalone utility actions
button-text-link — Inline link-style action
- Background: transparent
- Text: Amex Blue (
#006fcf) - Border: 0; underline appears on hover or sustained focus
- Padding: 0 (inline) or 8px 0 (block)
- Use: tertiary navigation, “View Details”, “Compare”, inline help links
button-large-cta — Hero-scale primary
- Background: Amex Blue (
#006fcf) - Text: White
- Radius: 8px (unchanged — Amex does not use larger radii for larger buttons)
- Padding: 16px 32px
- Font: Helvetica Neue 18/500
- Use: hero application CTAs, card-product apply buttons. Visually identical to button-primary but proportionally larger
Cards & Containers
card-product — Card-art product tile (the core marketing surface)
- Background: White (
#ffffff) - Border: 1px solid
#e6e6e6(hairline gray) - Radius: 12px (lg)
- Padding: 24px
- Content: card-art image (ID-1 aspect ratio, ~340×215px on desktop) at top, product name in H3, benefit list in body-sm, primary CTA at bottom
- Shadow: none at rest; very subtle 0 4px 12px rgba(0,0,0,0.06) on hover
- Use: card-product grid (Platinum, Gold, Green, Business, Centurion, etc.)
card-feature — Benefit/feature explanation tile
- Background: White or
#f7f8f9(alternate) - Border: 1px solid
#e6e6e6or none on alternate-surface variant - Radius: 12px
- Padding: 24px
- Content: icon (24px Amex Blue line-icon) at top, H4 title, body-sm description
- Use: 3- or 4-up benefit grid below hero (“Concierge”, “Travel”, “Rewards”, “Protection”)
card-comparison — Side-by-side card comparison
- Background: White
- Border: 1px solid
#e6e6e6per cell; cells share borders at intersections - Radius: 0 (table-style; the outer container may carry 12px)
- Content: card-art header row, then alternating benefit rows
- Use: “Compare Cards” page — visually a styled table, structurally a grid
Badges, Tags, Pills
badge-default — informational pill
- Background:
#f7f8f9 - Text:
#333333 - Border: 0
- Radius: 9999 (pill) or 4px (rectangle)
- Padding: 4px 10px
- Font: 13/500
- Use: “New”, “Featured”, category tags
badge-promo — limited-time / earned-rewards
- Background: Amex Blue (
#006fcf) - Text: White
- Use: “Limited Offer”, “Bonus Points”
Inputs & Forms
input-text — single-line text input
- Background: White (
#ffffff) - Text:
#333333 - Border: 1px solid
#000000(Amex uses high-contrast black input borders, not gray) - Radius: 8px
- Padding: 8px 12px (compact) or 10px 14px (comfortable)
- Font: 16/400 (16px to prevent iOS zoom on focus)
- Focus: 2px Amex Blue outline ring
- Error: 1px solid
#b21f1fborder, helper text in same red below field - Use: application forms, account login, support contact
input-select — dropdown
- Identical to input-text plus a downward chevron icon, right-aligned
- Native
<select>styled to match the visual treatment
input-checkbox / input-radio — selection controls
- Default: 1px black border, transparent fill
- Checked: Amex Blue (
#006fcf) fill with white checkmark/dot - Size: 18×18px minimum
Navigation
Top navigation bar
- Background: White (
#ffffff) - Border-bottom: 1px solid
#e6e6e6 - Height: 64px (the system’s header-height token)
- Content: Amex Blue Box logo (left), primary links centered, “Log In” + “Apply” actions right
- Link style:
#333333at 16/500, no underline at rest, Amex Blue on hover - Use: persistent global nav across all marketing surfaces
Sub-navigation / Tab navigation
- Background: White
- Border-bottom: 1px solid
#e6e6e6 - Active tab: 2px Amex Blue underline below tab label
- Tab label: 16/500, 12px vertical / 16px horizontal padding
- Use: product category pages, account-management sub-sections
Mobile navigation
- Hamburger menu icon (left), Amex logo (center), profile/login icon (right)
- Opens into full-screen overlay with primary links stacked vertically
- Background: White; Amex Blue accent on active state
5. Layout Principles
Spacing System
- Base unit: 4px (the canonical fintech base — divisible into the 16px body grid)
- Scale: 0 / 4 / 8 / 12 / 16 / 24 / 32 / 48 / 64 / 96 (the powers-of-4 progression)
- Section vertical padding: ~64–96px between major sections on desktop; ~32–48px on mobile
- Card internal padding: 24px on desktop, 16px on mobile
- Form field spacing: 16px between fields, 24px between field groups
Grid & Container
- Max content width: 1280px (the page-width token) centered, with 24–48px horizontal gutter
- Prose max width: 720px — reading-comfort cap for long-form content (terms, help articles)
- Column patterns:
- 12-column implied grid for marketing layouts
- 3-up card-product grid on desktop, 2-up tablet, 1-up mobile
- 4-up benefit grid on desktop, 2-up tablet, 1-up mobile
- 2-column hero (headline left, supporting copy or card art right) on desktop
Whitespace Philosophy
Amex treats whitespace as structural premium signal. Card-product portraits are surrounded by generous white margin (often 64–96px on desktop) so the product photo can breathe. The brand believes that crowding the card art with adjacent copy diminishes its premium signal — the empty space is the message. This is the opposite of dashboard-class UI, which packs the viewport.
Section Cadence
The standard amex.com card-product page scroll pattern:
- Top navigation bar (sticky on scroll)
- Hero with H1 headline + card-art portrait (2-column)
- Benefit grid (4-up icon tiles)
- Rewards / earning structure explanation (2-up alternating image-text)
- Comparison table or “View all cards” CTA
- Apply CTA section (centered headline + primary button)
- Footer (multi-column link grid on near-black or white surface)
6. Shapes & Radius Scale
| Tier | Radius | Use |
|---|---|---|
| Micro | 2px | Inline tags, checkbox/radio corners |
| Standard (sm) | 4px | Form micro-elements, table cells, badge corners |
| Comfortable (md) | 8px | Buttons (primary, ghost, large), input fields — the system’s load-bearing button radius |
| Relaxed (lg) | 12px | Card-product tiles, feature cards, modal corners |
| Large (xl) | 16px | Hero containers, oversized feature panels |
| Pill | 9999px | Promo badges, status pills — used sparingly |
The Amex radius scale is conservatively progressive. Unlike Mastercard’s “skip the middle” approach (jumping from 6 to 20 to 999), Amex moves through every step: 2, 4, 8, 12, 16, pill. The progression mirrors a bank-form-builder’s expectation — each interactive element gets a calm, slightly-rounded corner, with no oversized stadium gestures and no flat 0-radius elements (except the page itself and table cells in dense data).
7. Depth & Elevation
| Level | Treatment | Use |
|---|---|---|
| 0 | No shadow, no border | Page canvas, default text |
| 0.5 | 1px hairline border (#e6e6e6 or #000000) | Card products, input fields, table rules — the system’s preferred delineation |
| 1 | 0 2px 4px rgba(0,0,0,0.04) | Sticky header on scroll — barely visible |
| 2 | 0 4px 12px rgba(0,0,0,0.06) | Card-product hover state, dropdown menus |
| 3 | 0 8px 24px rgba(0,0,0,0.10) | Modal dialogs, overlay menus |
Shadow Philosophy
American Express prefers hairline borders over shadow elevation. The single most distinctive trait of the system is that a card product at rest has no shadow — only a 1px gray border. Hover state introduces a barely-visible shadow (4% opacity) without any transform. This is a bank-statement-document aesthetic: things are delineated by lines, not by light. The decision is intentional — soft shadows would import a SaaS-class softness that the brand rejects.
Decorative Depth
- Card-art photography carries its own metallic gradient (Platinum’s silver, Gold’s champagne) — this is the only decorative depth in the system
- Sticky header shadow on scroll provides the only ambient elevation cue
- Modal scrims use a subtle
rgba(0,0,0,0.4)backdrop to focus attention without darkening the entire page
8. Interaction & Motion
Easing Curves
- Standard:
cubic-bezier(0.4, 0, 0.2, 1)— the Material-standard ease for nearly all transitions - The brand does not maintain a separate “emphasized” or “expressive” curve — the standard easing covers the entire motion budget
Duration Buckets
- Fast (150ms): button hover colour shifts, link underline appearance
- Standard (240ms): card hover shadow lift, dropdown menu open
- Slow (320ms): modal dialog open, drawer slide-in
- The brand does not use cinematic durations (600ms+) — motion is functional, never theatrical
Per-Component Motion
Primary button
- Hover: background colour shifts from
#006fcf→#005a9eover 150ms - Active: no scale, no rotation — Amex resists button “press” gimmicks
- Focus: 2px Amex Blue outline ring appears instantly (no transition)
Card-product tile
- Hover: shadow fades in from 0 →
0 4px 12px rgba(0,0,0,0.06)over 240ms - No transform, no scale, no rotation — the card stays put
Top navigation
- On scroll past 64px: subtle drop shadow fades in over 150ms; navigation height stays at 64px
- Mobile menu: 320ms slide-in from right with
cubic-bezier(0.4, 0, 0.2, 1)ease
Dropdown menus
- Open: 240ms fade + 8px translate-up combo
- Close: 150ms fade-out
Page Transitions
- Standard browser-default page transitions (no SPA-style fade or slide)
- Skeleton loaders for data-dense surfaces (account dashboard, transaction list)
Reduced Motion Strategy
@media (prefers-reduced-motion: reduce):
- All shadow transitions become instant
- All translate-based animations become opacity-only fades over 100ms
- Modal open/close becomes instant
- Skeleton loaders remain (they aid comprehension, not decoration)
9. Accessibility & A11y
Contrast Pairs
| Pair | Approximate Ratio | WCAG Level |
|---|---|---|
#333333 text on #ffffff bg | 12.6:1 | AAA |
#ffffff text on #006fcf Amex Blue button | 4.7:1 | AA at body, AAA at large |
#006fcf link on #ffffff bg | 4.6:1 | AA at body |
#666666 muted on #ffffff bg | 5.7:1 | AA at body |
#999999 disabled on #ffffff bg | 2.85:1 | Fails for body, allowed only as disabled state visual |
#333333 text on #f7f8f9 alt-surface | 12.0:1 | AAA |
Focus Indicators
- 2px Amex Blue (
#006fcf) outline ring with 2px outline-offset - Applied to all focusable elements: nav links, buttons, form fields, card-product tiles, footer links
- The ring colour uses Amex Blue rather than browser-default blue, maintaining chromatic consistency
ARIA Patterns
- Card-product tiles use
role="link"with descriptivearia-label(e.g., “Apply for The Platinum Card from American Express”) - Dropdown menus follow the ARIA combobox or menu pattern depending on whether they accept input
- Form fields use explicit
<label for="">associations; placeholder text never substitutes for a label - Modal dialogs use
role="dialog"witharia-modal="true"and focus-trap - Card-art images carry meaningful
alttext (e.g., “The Platinum Card from American Express, metal finish”) - Decorative card-art photography on landing hero uses
alt=""when the product name is announced separately
Keyboard Navigation
- Tab cycles: skip-link → top nav (left → center → right) → hero CTA → benefit cards → comparison cards → apply CTA → footer columns
- Skip-link present at very top: “Skip to main content”
- Esc closes modal dialogs and mobile menu overlay
- Arrow keys navigate within tab navigation and dropdown menus
- Enter/Space activates buttons and links
Screen Reader Hints
- Card-product images supply alt text describing the physical card (finish, primary colour, product name)
- Form errors are announced via
aria-live="polite"region - Loading states announce “Loading account information” rather than silent skeleton placeholders
- Currency values use locale-aware formatting and are announced as natural language (“twelve thousand five hundred dollars” via aria-label override when context demands it)
Reduced Motion Handling
Detailed in §8. The system respects prefers-reduced-motion: reduce and converts translate-based animations to opacity-only fades.
10. Responsive Behavior
Breakpoints
| Name | Width | Key Changes |
|---|---|---|
| Mobile | ≤640px | Hamburger menu replaces full nav; hero stacks vertically (headline above card art); card-product grid becomes 1-up; benefit grid becomes 1-up; display-hero drops from 80 → ~44px; padding compresses to 16–24px |
| Tablet | 641–1024px | Hamburger or condensed nav depending on context; card-product grid 2-up; benefit grid 2-up; hero stays 2-column at slightly reduced scale |
| Desktop | 1025–1280px | Full nav with all primary links; card-product grid 3-up; benefit grid 4-up; hero 2-column at full scale |
| Wide | ≥1281px | Content max-width caps at 1280px; gutters grow symmetrically; card-art photography may grow up to ~400px on display-hero pages |
Touch Targets
All interactive elements meet or exceed the 44×44px minimum. Buttons at 10px padding produce ~40–44px height — at 16px-class body type this lands at exactly 44px. Form fields are 40px+ tall. Card-product tiles are entire tappable surfaces (typically 300px+ wide × 400px+ tall on mobile).
Collapsing Strategy
- Top nav: full horizontal → hamburger overlay. The Amex Blue Box logo remains visible at all breakpoints
- Hero: 2-column (headline + card art) → stacked (headline above card art)
- Card-product grid: 3-up → 2-up → 1-up
- Benefit grid: 4-up → 2-up → 1-up
- Comparison table: horizontal scroll on mobile (preserves cell alignment) rather than collapsing to vertical
- Footer: 4–6 columns → accordion with chevron toggles per section on mobile
Image Behavior
Card-art portraits scale proportionally, maintaining the ID-1 aspect ratio at every breakpoint. Photography uses srcset with at minimum 1x and 2x density, plus breakpoint-specific widths. Lazy loading is standard with a low-priority blur-up placeholder for below-fold imagery; hero card-art is eager-loaded.
11. Content & Voice
Tone
The voice is premium-membership concierge. Amex writes like a private bank that has decided to publish a magazine — formal, slightly aspirational, never trendy, never excited. The brand voice is the calm of a six-decade trusted institution translated into prose: confident, considered, never apologetic.
Microcopy Patterns
- Button verbs: “Apply Now”, “Learn More”, “Compare Cards”, “Sign In”, “View Benefits”, “Earn Rewards” — institutional and membership-tier, never “Get Started” or “Sign Up Free”
- Headline structure: editorial declarations centered on membership value (“The Platinum Card. Engineered for the way you live.”, “Membership Has Its Privileges”)
- Body copy: confident assertions backed by specific benefit data; medium sentences with editorial cadence; product names always carry the ® and “from American Express” suffix in formal contexts
- Error messages: “We weren’t able to complete your request. Please try again or call Customer Service at 1-800-XXX-XXXX.” — calm, includes a path to human help
- Success confirmations: “Your application has been submitted. A decision will be available within minutes.” — terse, professional, sets a clear expectation
Empty States
Empty content blocks say “No transactions to display” rather than “Nothing here yet!” — the brand never breaks character with playful empty-state copy. Empty states often include a soft CTA to take a meaningful next step (“Make your first purchase to start earning rewards”).
CTA Verb Conventions
American Express uses institutional and membership-tier verbs:
- Apply Now
- Learn More
- Compare Cards
- View Benefits
- Sign In
- Become a Card Member
- Earn Rewards
- Redeem Points
It does not use:
- Get Started (too SaaS-y)
- Sign Up Free (too trial-product)
- Try Now (too aggressive)
- Join! (too excited; punctuation rejected)
- Buy Now (Amex never “sells” — Cards are “issued”)
12. Dark Mode & Theming
American Express is light-only — no dark mode variant on the public marketing surface. The brand commits to pure white canvas as its primary surface because that white is the printed-statement aesthetic the institution is built around. Dark mode would invert the bank-document grammar that defines the brand.
The authenticated cardholder dashboard may carry a system-preference dark mode for accessibility, but the marketing surface — the card-product pages, the application flow, the membership-rewards portal — holds to white-canvas light.
Theming Notes for Derivatives
If you are adapting this system for a brand that needs a true dark mode:
- Swap
#ffffffcanvas →#0d1b2a(deep navy — preserves the financial-services register; pure black would feel too SaaS) - Swap
#333333text →#e6e6e6(off-white text on deep navy) - Swap
#e6e6e6borders →#1f2c3d(slightly lifted navy) - Amex Blue (
#006fcf) holds — it reads well on both white and deep navy. Increase saturation to#1a85d8if needed for AA contrast on the new dark canvas - Card-art photography: shift card portraits to their metal/dark variants (Platinum metal stays; Centurion’s black-on-black becomes a defining product portrait)
13. Lineage & Influences
American Express’s design language draws from:
- Mid-century corporate-finance heritage — the bank-statement aesthetic of paper cardholder bills, the engraving-quality of the Centurion portrait that has anchored the brand since the 1960s
- The Swiss school of corporate identity — Helvetica, Massimo Vignelli, Saul Bass — translated into a financial-services context. The discipline of one strong colour + one typeface + ruthless restraint
- Editorial print design (The Wall Street Journal, Financial Times) — typographic hierarchy and hairline-rule structure on white; restraint as the premium signal
- The Karl Malden “Don’t leave home without it” campaigns (1975–1994) — concierge-tier voice, slightly aspirational, corporate-formal. The brand’s verbal grammar descends directly from this era
- Network-peer card identity conventions — Visa, Mastercard, and Chase Sapphire all share the white-canvas/saturated-accent grammar. Amex sits closer to Visa’s blue-and-white restraint than to Mastercard’s warm-cream editorial register
- The ISO/IEC 7810 ID-1 card format itself — the 85.6 × 53.98 mm rectangle that defines a credit card globally is the brand’s most reproduced shape; the visual system exists to set this rectangle off
What American Express rejects:
- Editorial-cream warmth (Mastercard’s territory)
- SaaS-class gradient hero backgrounds
- Glassmorphism, frosted-glass, neumorphism — all softness gimmicks
- Display serifs as “premium signal” — Amex’s premium comes from typographic restraint, not from typeface variety
- Oversized stadium-radius gestures and full-pill nav containers
- Rainbow-accent palettes (Stripe’s, Plaid’s territory) — Amex’s single-accent budget is the brand’s commitment
- Trendy microinteractions (button bounces, magnetic hover) — motion is functional, never decorative
Named Influences
- Visa — https://www.visa.com
- Mastercard — https://www.mastercard.com
- Chase — https://www.chase.com
- The Wall Street Journal editorial design — https://www.wsj.com
- Helvetica Now (Monotype) — https://www.monotype.com/fonts/helvetica-now
- Saul Bass corporate identity work — https://www.aiga.org/design-journeys-saul-bass
14. Do’s and Don’ts
Do
- Use pure white (
#ffffff) as the page canvas — never warm cream, never off-white - Use
#333333for body text — never pure black - Reserve Amex Blue (
#006fcf) for primary CTAs, key links, and focus rings — the only saturated UI colour - Render card-product artwork at generous size with at least 64px of surrounding whitespace on desktop
- Set headlines in Helvetica Neue weight 600/700 with -1.2% to -3% letter-spacing
- Prefer 1px hairline borders over soft drop shadows for card-product delineation
- Use the conservative radius scale (4/8/12/16) — every interactive element gets a calm corner
- Use 12-16px padding on buttons; never inflate to fashion-pill dimensions
- Keep the chromatic budget tight: white + Amex Blue + near-black + single grey ramp
- Use membership-tier voice: “Card Member”, “apply”, “earn”, “privileges”
- Preserve the ID-1 rectangular aspect ratio on card-product imagery — never crop card art to a circle or pill
- Default to native form controls with thin styling rather than fully-custom replacements
Don’t
- Don’t use warm cream as a body background — that’s Mastercard’s territory, and importing it dilutes Amex’s clean-white premium signal
- Don’t use Amex Blue as a body or surface colour — it’s an accent, never a fill
- Don’t introduce a secondary saturated accent (no orange, no green, no purple) — the single-accent rule is the brand
- Don’t crop card-product photography to circles, pills, or oversized rounded rectangles — preserve the literal card aspect ratio
- Don’t use display-serif fonts for “premium” — Amex’s premium signal comes from typographic restraint, not from typeface variety
- Don’t use uppercase styling on section labels or eyebrows — Amex writes in sentence/title case throughout
- Don’t apply soft drop shadows everywhere — prefer hairline borders, reserve shadows for hover and modal states only
- Don’t use SaaS verbs (“Get Started”, “Sign Up Free”, “Try Now”) — use membership verbs (“Apply Now”, “Become a Card Member”)
- Don’t use 40px+ stadium radii or full-pill button shapes — the system stops at 16px and 9999px (the latter reserved for tiny badges only)
- Don’t auto-play video over hero content — Amex motion is functional, not theatrical
- Don’t pack the card-product grid edge-to-edge — generous whitespace around each tile is the premium signal
- Don’t use pure black (
#000000) for body text — it reads as a debugging colour against#333333’s editorial softness
15. Agent Prompt Guide
Quick Color Reference
- Primary CTA: Amex Blue (
#006fcf) - Background: White (
#ffffff) - Heading text: Near-Black (
#333333) - Body text: Near-Black (
#333333) - Muted text: Mid-Gray (
#666666) - Disabled text: Light Gray (
#999999) - Border (input): Black (
#000000) at 1px - Border (card / table): Gray (
#e6e6e6) at 1px - Link: Amex Blue (
#006fcf) - Focus ring: Amex Blue (
#006fcf) at 2px with 2px offset - Alternate surface: Cool Gray (
#f7f8f9) - Footer/dark: deep navy or near-black with white text
Example Component Prompts
- “Create a primary CTA button: Amex Blue (
#006fcf) background, white text, 8px border-radius, 10px vertical and 16px horizontal padding, Helvetica Neue 16px weight 500. On hover, shift background to#005a9eover 150ms with no transform.” - “Design a card-product tile 320px wide × 480px tall: white background, 1px solid
#e6e6e6border, 12px border-radius, 24px internal padding. Place card-art portrait (ID-1 aspect ratio, ~272×170px) at top with 24px bottom margin, then H3 product name in#333333, three benefit lines in body-small#666666, and a full-width Amex Blue CTA button at the bottom.” - “Build a top navigation bar: white background, 1px solid
#e6e6e6bottom border, 64px height. Amex Blue Box logo at the left, four primary links centred in#333333weight 500 with 32px gap, then ‘Log In’ link and ‘Apply’ Amex Blue CTA at the right. On scroll past 64px, fade in a subtle0 2px 4px rgba(0,0,0,0.04)shadow over 150ms.” - “Create a benefit grid: 4-up on desktop (1280px container, 24px gutter), 2-up tablet, 1-up mobile. Each cell uses white background with no border, 24px padding, a 24px Amex Blue line-icon at the top, an H4 title in
#333333, and a body-small description in#666666below.” - “Design a form field: 40px-tall single-line text input, white background, 1px solid
#000000border, 8px border-radius, 8px vertical / 12px horizontal padding, Helvetica Neue 16/400 in#333333. Label sits above the field in 13px weight 500. On focus, swap to 2px Amex Blue (#006fcf) outline ring with 2px offset. On validation error, swap border to 1px#b21f1fwith red helper text below.” - “Create a footer: deep-navy or near-black background, white text, 4–6 column link grid with sentence-case column headers in 14px weight 600. Include the Amex Blue Box logo at the top-left, a country/region selector pill at the bottom-right, and a horizontal hairline divider above a copyright + legal-links bottom row.”
Iteration Guide
When refining existing screens generated with this design system:
- Focus on one component at a time — Amex’s discipline is delineation, not orchestration
- Default backgrounds to pure white (
#ffffff), never tinted — this single change shifts the entire mood toward Amex - Use
#333333for body text — pure black breaks the editorial register - Hold the chromatic budget to white + Amex Blue (
#006fcf) + near-black + single grey ramp — if a third saturated colour appears, push it out - Prefer 1px hairline borders over drop shadows for delineation — the bank-document aesthetic is structural
- Keep buttons at 8px radius — resist the urge to inflate to pill or stadium dimensions
- Set headlines at 600/700 weight with -1.2% to -3% letter-spacing — looser tracking makes the page look generic
- Use membership-tier verbs in CTAs: “Apply Now”, “Compare Cards”, “Become a Card Member” — never SaaS verbs
Theme-toggle audit: score=2, signals=[prefers-color-scheme-css]
Drop amex into your project, then ship the actual sections in an afternoon.
1 · install design
npx @webdesignhot/design-md add amex 2 · ship landing page
npx agentkit init --design amex