Tools

Free color tools for designers.

Convert color values, check accessibility contrast, extract palettes from images, pick precise colors, and generate production-ready CSS gradients.

Tools, not toys.

Most colour tools on the open web are designed to delight — colour wheels that spin, palettes that auto-generate, infinite scrolls of random combinations. They are fun to use and almost never useful once you have committed to a brief.

The tools here are built for the other moment — when you have a value, you have a constraint, and you need to confirm that the value satisfies the constraint. What is this hex in CMYK? Does this body-copy pair pass AA at 14px? What CSS is this gradient, exactly? Quiet questions, quiet answers.

A great colour tool returns a value. A great colour encyclopedia returns a position in a long conversation. The site does both — this page is the first half.

Frequently asked questions.

Are these color tools free to use?
Yes. The converter, contrast checker, image palette extractor, picker, and gradient generator are free browser tools.
Do the tools send my colors or images to a server?
No. Interactive tools run in the browser. The image palette extractor processes uploaded images locally on your device.
Which color formats are supported?
The tools support common design formats including hex, RGB, HSL, CMYK, CSS gradients, and WCAG contrast ratios.