Claude (Anthropic)

Identity

AI & LLM

Bundled OpenDesign package for Claude (Anthropic), derived from curated DESIGN.md, tokens.css, and components.html fixtures.

Typography

Anthropic SerifDisplay500

Anthropic SansBody500

Ag

Anthropic MonoMono

--text-4xl · 64pxThe quick brown fox

--text-3xl · 52pxThe quick brown fox

--text-2xl · 32pxThe quick brown fox

--text-xl · 25pxThe quick brown fox

--text-lg · 20pxThe quick brown fox

--text-base · 16pxThe quick brown fox

--text-sm · 14pxThe quick brown fox

--text-xs · 10pxThe quick brown fox

Palette

--bg#f5f4edPage background — defines the brand canvas.

--surface#faf9f5Card / lifted container background.

--surface-warm#e8e6dcTertiary surface tier (kami warm-sand).

--fg#141413Primary text color.

--fg-2#3d3d3aSecondary text tier (kami dark-warm).

--muted#5e5d59Subtext / captions.

--meta#87867fTertiary FG / metadata tier (kami stone).

--border#f0eee6Default border / card edge.

--border-soft#e8e6dcInner row separator that should not visually compete.

--accent#c96442Brand accent. ≤2 visible uses per screen (lint enforced).

--accent-on#faf9f5FG when --accent is the bg.

--success#17a34aSuccess state.

--warn#eab308Warning state.

--danger#b53333Danger state.

Also named in DESIGN.md

Coral Accent#d97757A lighter, warmer variant of the brand color used for text accents, links on dark surfaces, and secondary emp…

Focus Blue#3898ecStandard blue for input focus rings — the only cool color in the entire system, used purely for accessibility.

Pure White#ffffffReserved for specific button surfaces and maximum-contrast elements.

Dark Surface#30302eDark-theme containers, nav borders, and elevated dark elements — warm charcoal.

Charcoal Warm#4d4c48Button text on light warm surfaces — the go-to dark-on-light text.

Imagery & layout

Radius

--radius-sm8px

--radius-md12px

--radius-lg16px

--radius-pill9999px

Spacing

--space-1 · 4px

--space-2 · 8px

--space-3 · 12px

--space-4 · 16px

--space-5 · 20px

--space-6 · 24px

--space-8 · 32px

--space-12 · 48px

Elevation

--elev-raised

Layout

Layout rules

Base unit: 8px
Scale: 3px, 4px, 6px, 8px, 10px, 12px, 16px, 20px, 24px, 30px
Button padding: asymmetric (0px 12px 0px 8px) or balanced (8px 16px)
Card internal padding: approximately 24–32px
Section vertical spacing: generous (estimated 80–120px between major sections)
Max container width: approximately 1200px, centered

Component kit

Light Dark