zod.dev is built on a pure-white canvas (rgb(250, 250, 250)).
The system uses rgb(245, 245, 245) as the singular interactive color.
Inter as the primary typeface.
Inter is paired with Inter Fallback for secondary roles.
A restrained elevation system (1 distinct shadow) — shadows reserved for the few elements that must lift off the page.
Motion is a first-class concern — 17 keyframe animations plus transition-driven interactions.
01
Color — roles, semantics & the full census
17 colors measured · click any swatch to copy
Canvas
#fafafa
AAA 18.97:1
Ink
#0a0a0a
AAA 18.97:1
Accent
#f5f5f5
Fail 1.04:1
Line
#e5e5e5
Fail 1.21:1
Semantic states
No semantic state colors detected — this system signals state through weight & motion, not hue.
17 colors mined from the live renderexpand
02
Type — the ladder, in the real face
5 roles · rendered live in the real Inter (captured woff2) · lines are editable, click any spec to copy
display xl
display-xl30px · 700
display md
display-md20px · 600 · ×1.50
body
body16px · 400 · ×1.25
body sm
body-sm15px · 500 · ×1.07
button
button14px · 500 · ×1.07
04
Depth — elevation is extracted, not invented
1 box-shadows measured on the live page · click a tile to copy its raw value
shadow-1
05
Motion — easings, transitions & live keyframes
2 easing curves · 17 keyframes · hover a tile to preview
8 component families · 47 variants counted on the live DOM
Component
Variants found
nav Links
×10
links
×10
buttons
×9
code Block
×9
cards
×4
heading H3
×3
heading H1
×1
heading H2
×1
Component style specs (§4)expand
Buttons
Icon Button
Background: transparent
Text: #737373{colors.primary-focus}
Padding: 6px
Radius: 6px
Font: 14px weight 500
Use: Toolbar/UI icons
Focus: outline: rgb(115, 115, 115) auto 1px
Ghost
Background: transparent
Text: #0a0a0a{colors.ink-muted}
Padding: 6px 16px 6px 8px
Radius: 8px
Font: 14px weight 400
Use: Subtle action, toolbar, nav button
Focus: outline: rgb(115, 115, 115) auto 1px
Light / Invert
Background: #f5f5f5{colors.primary}
Text: #737373{colors.primary-focus}
Padding: 6px
Radius: 8px
Border: 1px solid rgb(229, 229, 229)
Font: 14px weight 200
Use: Bright CTA on dark sections
Focus: outline: rgb(115, 115, 115) auto 1px
Ghost
Background: transparent
Text: #737373{colors.primary-focus}
Padding: 6px 8px
Radius: 6px
Font: 14px weight 400
Use: Subtle action, toolbar, nav button
Focus: outline: rgb(115, 115, 115) auto 1px
Outline
Background: transparent
Text: #0a0a0a{colors.ink-muted}
Padding: 0px
Radius: 9999px
Border: 1px solid rgb(229, 229, 229)
Font: 14px weight 400
Use: Secondary action with border
Focus: outline: rgb(115, 115, 115) auto 1px
Icon Button
Background: transparent
Text: #0a0a0a{colors.ink-muted}
Padding: 8px
Radius: 6px
Font: 14px weight 500
Use: Toolbar/UI icons
Focus: outline: rgb(115, 115, 115) auto 1px
Outline
Background: transparent
07
Layout — structure & dimensions
4 layout metrics measured
max Width1200px
header Height0px
sidebar Width286px
container Padding0px
08
Responsive — real breakpoints
fluid system — no hard stops
No distinct @media breakpoints captured at the desktop/mobile pass — this layout is fluid, adapting by ratio rather than hard stops.
09
Do's & Don'ts
14 enforceable rules pulled verbatim from the spec
Do
Use Off-White (`#fafafa`) as the page background — it's intentionally not pure white
Use Pure Black (`#0a0a0a`) for text — not pure black, it's warmer and more readable
Use Inter as the primary typeface — it defines the brand personality
Use the extracted shadow patterns for elevation — they are tuned to match the brand palette
Use Off-White (`#f5f5f5`) as the primary accent — it's the brand's signature interactive color
Use 6px border-radius on buttons — the standard corner rounding for interactive elements
Each card includes a top image — imagery is part of the card identity, not optional
Use a 4-column grid on desktop — density matters for this content type
Don't
Don't use pure white (`#ffffff`) as a page background — the warm tone is part of the brand identity
Don't use pure black (`#000000`) for text — the near-black adds warmth
Don't substitute with generic sans-serif or serif — the custom font carries the brand
Don't invent new shadow values — use only the extracted shadow levels
Don't introduce additional saturated accent colors — the palette is intentionally controlled
Don't over-build the footer — this design keeps it minimal (2 cols, 0 links)
10
Agent guide & export
Paste-ready prompt + the real files behind this page
Build a UI in the zod.dev design system.
Canvas #fafafa · ink #0a0a0a · accent #f5f5f5.
Type: Inter — respect the size/weight ladder in §3.
Radius, spacing, shadow: use only the extracted scales (no magic numbers).
Full spec follows — paste the DESIGN.md below into your agent.