Spline
A dark-canvas, 3D-first product interface anchored on pure black (#000000) with a single saturated-blue primary CTA and floating gradient 3D primitives as the hero's entire visual payload. The system reads as a creative-tooling platform — near-black surfaces, pill-shaped buttons, soft 16px rounded cards, restrained white typography in Spline Sans, and a chromatic accent set that comes almost entirely from rendered 3D objects and code-editor syntax fragments rather than from UI chrome.
Works with
Claude Code·Cursor·Codex·Gemini CLI·Copilot·v0·Lovable·Bolt·Windsurf·Replit
Color Palette
Accent
Neutrals
Typography
display
58px · 500 · 1.241
The quick brown fox jumps
heading
36px · 500 · 1.222
The quick brown fox jumps
label
14px · 500 · 1.714
The quick brown fox jumps
label-sm
14px · 500 · 1.429
The quick brown fox jumps
body
12px · 400 · 1.333
The quick brown fox jumps
button
16px · 400 · 1.15
The quick brown fox jumps
Spacing & Shape
Spacing
| Name | Value | Preview |
|---|---|---|
| xxs | 4px | |
| xs | 8px | |
| sm | 12px | |
| md | 16px | |
| lg | 24px | |
| xl | 32px | |
| xxl | 40px | |
| xxxl | 56px |
Border Radius
| Name | Value | Preview |
|---|---|---|
| sm | 8px | |
| md | 12px | |
| lg | 16px | |
| xl | 24px | |
| xxl | 32px | |
| xxxl | 56px | |
| pill | 99px |
FAQ
- What colors does Spline use?
- Spline's core palette includes #ffffff, #000000, #191a1d, #888888, #0062ff. The full color set with usage roles (canvas, ink, surfaces, accent, semantic) is documented in the Spline DESIGN.md.
- What font does Spline use?
- Spline's primary typeface is Spline Sans. 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 Spline design system?
- A dark-canvas, 3D-first product interface anchored on pure black (#000000) with a single saturated-blue primary CTA and floating gradient 3D primitives as the hero's entire visual payload. The system…