replicate.com is built on a pure-white canvas (rgb(255, 255, 255)).
The system uses rgb(255, 255, 255) as the singular interactive color.
Sharp 0px corners on CTAs — architectural restraint, engineering precision alongside rb-freigeist-neue as the primary typeface.
A restrained elevation system (3 distinct shadows) — shadows reserved for the few elements that must lift off the page.
Motion is a first-class concern — 7 keyframe animations plus transition-driven interactions.
01
Color — roles, semantics & the full census
25 colors measured · click any swatch to copy
Canvas
#ffffff
AAA 16.29:1
Ink
#202020
AAA 16.29:1
Accent
#ffffff
Fail 1:1
Line
#d9d9d9
Fail 1.41:1
Semantic states
No semantic state colors detected — this system signals state through weight & motion, not hue.
25 colors mined from the live renderexpand
02
Type — the ladder, in the real face
4 roles · rendered live in the real Inter (captured woff2) · lines are editable, click any spec to copy
display xl
display-xl72px · 700
display md
display-md30px · 600 · ×2.40
body
body14px · 400 · ×2.14
button
button18px · 400 · ×0.78
04
Depth — elevation is extracted, not invented
3 box-shadows measured on the live page · click a tile to copy its raw value
shadow-1
shadow-2
shadow-3
05
Motion — easings, transitions & live keyframes
2 easing curves · 7 keyframes · hover a tile to preview
15 component families · 62 variants counted on the live DOM
Component
Variants found
buttons
×10
logo Tile
×8
links
×8
tabs
×6
badges
×5
status Badge
×4
nav Links
×4
heading H2
×4
inputs
×3
footer Links
×3
cards
×2
code Block
×2
heading H1
×1
heading H3
×1
heading H4
×1
Component style specs (§4)expand
Buttons
Light / Invert
Background: #ffffff{colors.primary}
Text: #202020{colors.ink-subtle}
Padding: 6px 10px
Radius: 0px
Border: 1px solid rgb(32, 32, 32)
Font: 14px weight 400
Use: Bright CTA on dark sections
Outline
Background: #000000
Text: #ffffff{colors.primary}
Padding: 12px 16px
Radius: 0px
Border: 1px solid rgb(0, 0, 0)
Font: 18px weight 400
Use: Secondary action with border
Ghost
Background: transparent
Text: #202020{colors.ink-subtle}
Padding: 10px 8px
Radius: 0px
Font: 14px weight 400
Use: Subtle action, toolbar, nav button
Icon Button
Background: #ffffff{colors.primary}
Text: #202020{colors.ink-subtle}
Padding: 0px
Radius: 0px
Border: 1px solid rgb(32, 32, 32)
Font: 18px weight 400
Use: Toolbar/UI icons
Pill
Background: rgba(0, 0, 0, 0.3)
Text: rgba(255, 255, 255, 0.9){colors.primary}
Padding: 2px 10px
Radius: 9999px
Font: 11px weight 400
Use: Status pills, tags, chips
Pill
Background: transparent
Text: #202020{colors.ink-subtle}
Padding: 2px
Radius: 9999px
Font: 16px weight 400
Use: Status pills, tags, chips
Cards & Containers
Standard Card
Background: transparent
Padding: 0px
Radius: 0px
Border: 4px solid rgba(0, 0, 0, 0)
07
Layout — structure & dimensions
5 layout metrics measured
max Width1200px
header Height72px
sidebar Width0px
gap16px
container Padding24px
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
15 enforceable rules pulled verbatim from the spec
Do
Use Near-Black (`#202020`) for text — not pure black, it's warmer and more readable
Use basier-square 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 full-pill radius (9999px) only for specific elements (avatars, pills, toggles)
Use Pure White (`#ffffff`) as the primary accent — it's the brand's signature interactive color
Use pill-shaped radius (9999px) for primary CTA buttons — the brand uses fully-rounded, pill CTAs
Respect the 4px–64px spacing range — the design uses a wide scale for visual breathing room
Make the hero full-viewport (≥70% screen height) — this design uses an immersive hero, not a tall navbar
Use a single primary CTA in the hero — the design intentionally avoids choice paralysis
Don't
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 apply pill radius on rectangular buttons or cards — it's reserved for specific interactive elements
Don't introduce additional saturated accent colors — the palette is intentionally controlled
Don't use rectangular buttons for primary actions — the rounded pill shape is the brand standard
10
Agent guide & export
Paste-ready prompt + the real files behind this page
Build a UI in the replicate.com design system.
Canvas #ffffff · ink #202020 · accent #ffffff.
Type: basier-square — 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.