Design systems
that ship
everywhere.
Generate scales, check contrast, simulate colour blindness, and export to CSS, Tailwind, Figma tokens — all offline.
Colour Scales
#7C3AED on #FFFFFF
Contrast: 7.14:1
Export
What you get
Colour tooling built
for designers who ship.
Stop juggling browser extensions, Figma plugins, and spreadsheets. Palette is one app that does it all — offline.
Colour Scale Generation
Pick a base hue and automatically generate 10-step lightness/saturation scales, perceptually uniform.
Colour Wheel & Harmonies
Complementary, triadic, split-complementary, and analogous schemes with interactive wheel.
WCAG Contrast Checker
Real-time AA/AAA compliance checking for text, large text, and UI components between any two colours.
Colour Blindness Simulation
Preview your palette under deuteranopia, protanopia, tritanopia, and achromatopsia filters.
Semantic Role Mapping
Assign colour tokens to semantic roles — primary, secondary, success, danger — and name them your way.
Live Preview
See your palette applied to a real UI mockup in real time. Catch clashes before they hit production.
Export Anywhere
CSS custom properties, Tailwind config, Design Tokens JSON, or plain hex list — one click.
Multiple Projects
Organise palettes by project. All saved locally — switch between your brand projects instantly.
Open source
Built in the open,
owned by no one.
Palette is MIT-licensed and developed in the open on GitHub. No subscription, no cloud, no tracking. Build color systems the way you want.
Ready to build
Build your colour system,
ship it anywhere.
Free forever. No cloud. No subscription. Runs on Linux, macOS, and Windows.