Flagsmith
A developer-tooling marketing surface built on a warm cream-to-white canvas, anchored by a heavy Bitter Pro serif display voice and a bright teal primary action. The system pairs editorial serif headlines with Open Sans body copy, floats soft-shadowed white cards (code windows, feature-toggle widgets, testimonials, pricing tiers) over a near-white field, and uses a small playful accent set — teal, yellow, purple — for product UI fragments and plus/equals connector glyphs. The tone reads as friendly, open-source, engineer-credible.
Works with
Claude Code·Cursor·Codex·Gemini CLI·Copilot·v0·Lovable·Bolt·Windsurf·Replit
Color Palette
Accent
Neutrals
Typography
h1
52.5px · 800 · 1.3
The quick brown fox jumps
h2
35px · 800 · 1.3
The quick brown fox jumps
h3
19.25px · 700 · 1.3
The quick brown fox jumps
body
17.5px · 400 · 1.5
The quick brown fox jumps
button
14px · 600 · 1.5
The quick brown fox jumps
Spacing & Shape
Spacing
| Name | Value | Preview |
|---|---|---|
| xxs | 4px | |
| xs | 7px | |
| sm | 9px | |
| md | 14px | |
| lg | 18px | |
| xl | 26px | |
| xxl | 37px | |
| huge | 48px |
Border Radius
| Name | Value | Preview |
|---|---|---|
| xs | 5px | |
| sm | 7px | |
| md | 9px | |
| lg | 20px | |
| pill | 22px |
FAQ
- What colors does Flagsmith use?
- Flagsmith's core palette includes #0ac2a3, #1e0d26, #222222, #4f4554, #333333. The full color set with usage roles (canvas, ink, surfaces, accent, semantic) is documented in the Flagsmith DESIGN.md.
- What font does Flagsmith use?
- Flagsmith's primary typeface is Bitter Pro. 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 Flagsmith design system?
- A developer-tooling marketing surface built on a warm cream-to-white canvas, anchored by a heavy Bitter Pro serif display voice and a bright teal primary action. The system pairs editorial serif head…