bun.sh is built on a near-black canvas (rgb(20, 21, 26)).
The system uses rgb(244, 114, 182) as the accent for primary actions and brand signals.
System-ui as the primary typeface.
A layered elevation system (7 distinct shadows) building a clear front-to-back hierarchy.
Motion is a first-class concern — 13 keyframe animations plus transition-driven interactions.
01
Color — roles, semantics & the full census
66 colors measured · click any swatch to copy
Canvas
#14151a
AAA 18.23:1
Ink
#ffffff
AAA 18.23:1
Accent
#f472b6
AA 6.88:1
Line
#ffffff
AAA 18.23:1
Semantic states
No semantic state colors detected — this system signals state through weight & motion, not hue.
66 colors mined from the live renderexpand
02
Type — the ladder, in the real face
6 roles · system fallback — no woff2 captured · lines are editable, click any spec to copy
13 component families · 63 variants counted on the live DOM
Component
Variants found
links
×10
buttons
×9
heading H3
×8
tooltip
×7
code Block
×7
heading H2
×6
nav Links
×5
footer Links
×4
tabs
×3
inputs
×1
heading H1
×1
heading H4
×1
alert
×1
Component style specs (§4)expand
Buttons
Dark / Solid
Background: #090a11
Text: #7f8497
Padding: 0px 8px
Radius: 40px
Font: 16px weight 500
Use: Solid dark CTA
Ghost
Background: transparent
Text: #d1d5db{colors.ink-muted}
Padding: 8px 4px
Radius: 6px
Font: 16px weight 400
Use: Subtle action, toolbar, nav button
Primary Brand
Background: #f472b6{colors.primary}
Text: #14151a{colors.surface-2}
Padding: 8px 16px
Radius: 8px
Font: 18px weight 500
Use: Primary CTA / brand action
Pill
Background: #282a35
Text: #ffffff{colors.hairline}
Padding: 12px 18px
Radius: 9999px
Font: 16px weight 500
Use: Status pills, tags, chips
Secondary
Background: #3b3f4b
Text: #e5e7eb
Padding: 8px 16px
Radius: 6px 6px 0px 0px
Font: 16px weight 400
Use: Secondary action
Secondary
Background: #282a36
Text: #f472b6{colors.primary}
Padding: 16px
Radius: 7px 7px 0px 0px
Font: 16px weight 400
Use: Secondary action
Ghost
Background: transparent
Text: #d1d5db{colors.ink-muted}
Padding: 16px
Radius: 7px 7px 0px 0px
Font: 16px weight 400
Use: Subtle action, toolbar, nav button
Inputs & Forms
07
Layout — structure & dimensions
5 layout metrics measured
max Width1280px
header Height83px
sidebar Width0px
gap32px
container Padding0px
08
Responsive — real breakpoints
8 media-query stops read from the live CSS
48px
580px
640px
767px
768px
1024px
1280px
1536px
09
Do's & Don'ts
18 enforceable rules pulled verbatim from the spec
Do
Use dark background (`#14151a`) as the foundation — this is a dark-mode-native design
Use Oxygen 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 Hot Pink (`#f472b6`) as the primary accent — it's the brand's signature interactive color
Use 8px border-radius on buttons — the standard corner rounding for interactive elements
Maintain nav height at 83px — consistent vertical space for the navigation bar
Make the hero full-viewport (≥70% screen height) — this design uses an immersive hero, not a tall navbar
Include exactly 2 CTAs in the hero (primary + secondary) — this design pattern is multi-action, not single-purpose
Each card uses an icon (not photo) — the visual language is illustrative, not photographic
Repeat the primary CTA across 4 banner sections — conversion paths are layered, not single
Don't
Don't use light backgrounds — the dark canvas is the native medium
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 collapse or hide the nav on scroll without an explicit scroll-triggered animation — the design uses fixed nav presence
Don't make the nav sticky — this design lets it scroll away to maximize content focus
10
Agent guide & export
Paste-ready prompt + the real files behind this page
Build a UI in the bun.sh design system.
Canvas #14151a · ink #ffffff · accent #f472b6.
Type: Roboto — 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.