Featherless
A near-monochrome developer-platform interface built on a warm off-white canvas (#fafafa) with a dark charcoal navigation/footer and a single high-voltage yellow accent (#fef47a) carrying every primary action. The system reads as engineered, minimal modern-SaaS — flat surfaces with no shadows, tight 8px-radius cards, condensed Barlow display headlines set very large with heavy negative tracking, and low-poly faceted 3D objects scattered as decorative artifacts. Brand voltage comes almost entirely from the acid-yellow CTA against charcoal and off-white.
Works with
Claude Code·Cursor·Codex·Gemini CLI·Copilot·v0·Lovable·Bolt·Windsurf·Replit
Color Palette
Accent
Neutrals
Typography
display
84px · 400 · 0.95
The quick brown fox jumps
heading
48px · 400 · 1.0
The quick brown fox jumps
subhead
22px · 400 · 1.3
The quick brown fox jumps
body
22px · 400 · 1.3
The quick brown fox jumps
button
16px · 400 · 1.5
The quick brown fox jumps
Spacing & Shape
Spacing
| Name | Value | Preview |
|---|---|---|
| xxs | 4px | |
| xs | 8px | |
| sm | 12px | |
| md | 16px | |
| lg | 24px |
Border Radius
| Name | Value | Preview |
|---|---|---|
| sm | 8px | |
| md | 12px | |
| lg | 16px | |
| lg-alt | 17px | |
| pill | 1600px |
FAQ
- What colors does Featherless use?
- Featherless's core palette includes #141413, #333333, #222222, #fafafa, #ffffff. The full color set with usage roles (canvas, ink, surfaces, accent, semantic) is documented in the Featherless DESIGN.md.
- What font does Featherless use?
- Featherless's primary typeface is Barlow. The complete type scale (sizes, weights, line-height and letter-spacing per role), with an open substitute where the original is licensed, is documented in the DESIGN.md.
- What is the Featherless design system?
- A near-monochrome developer-platform interface built on a warm off-white canvas (#fafafa) with a dark charcoal navigation/footer and a single high-voltage yellow accent (#fef47a) carrying every prima…