color tools
100% offline
No uploads
Free · no signup
4 tools
Color tools
Offline color tools convert, mix, and generate colors — translating between HEX, RGB, HSL and OKLCH, blending two colors, building tint/shade ramps, and deriving harmonious palettes — entirely in the browser with copy-ready CSS and no tracking.
Every Color tool
About color tools
Color work is fiddly: a HEX from a designer, an OKLCH ramp for a design system, a complementary accent for a landing page. These tools handle the math locally — every conversion follows the CSS Color Module Level 4 spec, ramps are generated in perceptually-uniform OKLCH so lightness steps look even, and palettes come from classic hue-rotation harmony rules. Nothing you paste is logged or uploaded; copy the CSS and go.
Why pick offline color tools
- Zero uploads — data never leaves your browser
- No cookies, ads, fingerprinting, or cross-site tracking
- Free, no signup or account required
- Works offline once loaded; installable as a PWA
- Verifiable in DevTools — zero network calls when you press a button
Frequently asked questions
Are these color tools really free and private?
Yes. Every color tool runs entirely in your browser using local color math — nothing you enter is uploaded, logged, or tracked. Open DevTools → Network and you'll see zero requests when you convert, mix, or generate a palette.
Why do you generate ramps and palettes in OKLCH?
OKLCH is perceptually uniform, so equal numeric steps in lightness look like equal visual steps. Tint/shade ramps built in OKLCH stay balanced where the same ramp in HSL drifts — the lighter end washes out and the darker end muddies. You still get copy-ready HEX/RGB for every swatch.
Can I copy the output straight into CSS or Tailwind?
Yes. Every swatch has a copy button for its CSS string, and the palette generator can export the whole set as CSS custom properties. Paste them into a stylesheet, a Tailwind config, or a design-token file.