A small, sharp color lab
HueKit brings together the color and CSS jobs that interrupt real work, into one clean toolkit that is fast, free and private.
What HueKit is
HueKit is a collection of focused color and CSS tools. It converts colors between hex, RGB, HSL, HSV and CMYK, generates box shadows, gradients and glassmorphism, checks WCAG contrast, and extracts palettes from images. There is also a library of 150 named colors, each with its own reference page.
Why it runs in your browser
Every tool here is fully client side. That is a deliberate choice with real benefits. Results appear the instant you type, because there is no server round trip. Your colors and images never leave your device, so there is nothing to upload and nothing to leak. And once a page has loaded, the tools keep working even with no connection.
No accounts, no tracking
HueKit has no sign up, no analytics, and no advertising. It does not set tracking cookies or build a profile of you. It is simply a set of tools that do their job and get out of the way.
How the color math works
All conversions use standard, well understood formulas. Contrast is computed with the official WCAG 2.1 relative luminance method, so the pass and fail results match what an auditor would expect. CMYK uses the common naive mapping, which is right for on screen previews, though production print should always be checked against a printer profile.
Start here
The most popular starting point is the hex to RGB converter. From there, the full color converter opens up every model and builds harmonies, and the contrast checker keeps your text readable. Browse everything from the home page.