Anthropic brand colors, fonts & UI tokens
The palette, type, corner geometry and surface tones behind Anthropic’s website, with contrast ratios and tokens you can paste into Tailwind, CSS or Figma.
Typography
- Headings
- Anthropic Sans
- Body
- Anthropic Serif
- Monospace
- JetBrains Mono
- Free stand-in
- Inter / Source Serif 4 / JetBrains Mono
Anthropic uses proprietary sans and serif families. Inter and Source Serif 4 are free stand-ins; JetBrains Mono is OFL.
Geometry & surface
- Radius style
- Rounded · 8-14 px
- Controls
- 8px
- Cards
- 16px
- Scale
- 4px · 8px · 16px
Design language
- A warm ivory canvas (#FAF9F5) and near-black slate type make the site read like a printed journal.
- Clay (#D97757) is the single warm accent; most of the system is a carefully stepped warm-gray ramp.
- A sans for interface and headlines, a serif for long-form reading, both set at calm sizes.
Live UI preview
Anthropic’s palette, type and corner geometry on a navbar, hero, pricing table, form field and toast. Switch to the WCAG-fixed palette or dark mode to compare.
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For individuals
- 3 projects
- Basic reporting
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- Unlimited projects
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For larger organizations
- SSO and audit log
- Custom roles
- Dedicated manager
Sample content. Colors, type and corners come from the Anthropic profile.
Technical SEO snapshot
www.anthropic.com · scanned 10 Nov 2026- passTitle tag16 chars: “Home \ Anthropic”
- passMeta description121 chars
- passSingle H1 heading1 H1 element(s)
- passCanonical URLhttps://www.anthropic.com/
- passHTML lang attributelang="en"
- passMobile viewportwidth=device-width, initial-scale=1
- passOpen Graph tags3/3 of og:title, og:description, og:image
- passTwitter / X cardsummary_large_image
- warnStructured data (JSON-LD)No JSON-LD found
- passHTTPSServed over HTTPS
- passIndexable (robots meta)No robots restrictions
- passXML sitemap589 URLs · https://www.anthropic.com/sitemap.xml
- passFavicon / touch iconIcon link present
- passImage alt text100% of 5 images
WCAG contrast ratios
| Pairing | Colors | Ratio | WCAG AA |
|---|---|---|---|
| Body text on surface | #141413 / #FAF9F5 | 17.50:1 | Pass |
| Secondary text on surface | #5E5D59 / #FAF9F5 | 6.26:1 | Pass |
| Primary as link/text on surface | #D97757 / #FAF9F5 | 2.96:1 | Fail |
| Button label on primary | #111113 / #D97757 | 6.04:1 | Pass |
| Accent on surface | #6A9BCC / #FAF9F5 | 2.78:1 | Fail |
| White on secondary | #FFFFFF / #141413 | 18.43:1 | Pass |
| Body text on white | #141413 / #FFFFFF | 18.43:1 | Pass |
| Dark mode: text on canvas | #F5F5F7 / #110E0F | 17.64:1 | Pass |
| Dark mode: primary on canvas | #D97757 / #110E0F | 6.15:1 | Pass |
Use the Anthropic system in SuiteAnvil
Each tool opens with Anthropic preloaded as the active BrandProfile.
Anthropic tokens for Tailwind CSS v4
Paste into your global stylesheet, or open StyleExtract for CSS variables, Figma tokens, DESIGN.md and .cursorrules.
/* Anthropic design tokens, extracted from https://www.anthropic.com
Generated by SuiteAnvil StyleExtract · https://suiteanvil.com */
@import "tailwindcss";
@theme {
/* Brand roles */
--color-brand: #D97757;
--color-brand-foreground: #111113;
--color-secondary: #141413;
--color-accent: #6A9BCC;
--color-surface: #FAF9F5;
--color-ink: #141413;
--color-ink-muted: #5E5D59;
--color-line: #E8E6DC;
/* Surfaces (UI vibe: Warm paper) */
--color-canvas: #FAF9F5;
--color-card: #FFFFFF;
--color-hairline: #E8E6DC;
/* Primary tonal scale */
--color-brand-50: #FDF8F7;
--color-brand-100: #FAEFEB;
--color-brand-200: #F6DDD5;
--color-brand-300: #EEC2B3;
--color-brand-400: #E4A089;
--color-brand-500: #D97757;
--color-brand-600: #BA674C;
--color-brand-700: #97543F;
--color-brand-800: #724132;
--color-brand-900: #523026;
--color-brand-950: #38221D;
/* Typography: brand family first, free stand-in second */
--font-heading: "Anthropic Sans", Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
--font-sans: "Anthropic Serif", "Source Serif 4", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
--font-mono: "JetBrains Mono", "SF Mono", ui-monospace, Menlo, Consolas, monospace;
/* Shape (UI vibe: Rounded · 8-14 px) */
--radius-sm: 4px;
--radius-md: 8px;
--radius-lg: 16px;
--radius-button: 8px;
--radius-control: 8px;
--radius-card: 16px;
}
/* Dark mode overrides (toggle with <html data-theme="dark">) */
@custom-variant dark (&:where([data-theme="dark"], [data-theme="dark"] *));
[data-theme="dark"] {
--color-brand: #D97757;
--color-brand-foreground: #111113;
--color-accent: #6A9BCC;
--color-surface: #110E0F;
--color-canvas: #110E0F;
--color-card: #1B1719;
--color-hairline: #292627;
--color-ink: #F5F5F7;
--color-ink-muted: #A1A1AA;
--color-line: #292627;
}
SuiteAnvil extracts publicly visible design tokens, logos, and font references for workflow automation. You are responsible for ensuring you hold valid commercial rights or client authorization for any proprietary fonts, trademarks, and brand assets before commercial publication. Licensing notice
FAQ
What is Anthropic’s primary brand color?
Anthropic’s primary color is #D97757 (rgb(217, 119, 87)), used for primary actions and emphasis. Text is set in #141413 on a #FAF9F5 surface.
What font does Anthropic use?
Anthropic uses Anthropic Sans for headings and Anthropic Serif for body text, with JetBrains Mono for code. Anthropic uses proprietary sans and serif families. Inter and Source Serif 4 are free stand-ins; JetBrains Mono is OFL.
What is a free alternative to Anthropic’s font?
Inter is a close free alternative for headings, Source Serif 4 for body text, and JetBrains Mono works for monospace.
What corner radius does Anthropic use?
Anthropic reads as rounded · 8-14 px: controls use 8px, cards about 16px, on a warm paper canvas (#FAF9F5).
Do Anthropic’s brand colors meet WCAG contrast?
7 of 9 key pairings pass WCAG 2.1 AA. Primary as link/text on surface is 2.96:1; Accent on surface is 2.78:1
More in AI & Productivity
Reference snapshot of Anthropic’s public website styling for educational and interoperability purposes, scanned 10 Nov 2026. Anthropic and its logo are trademarks of their owner, shown for identification only; SuiteAnvil is not affiliated with or endorsed by Anthropic.
Compare your website with Anthropic
Scan your own site and see its palette, fonts, corner radius, WCAG contrast and SEO score next to Anthropic's, side by side.
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