Chromatic Lab

The color lab for designers and developers

Convert colors, generate CSS, and check accessibility without leaving the page. HueKit is fast, free, and runs entirely in your browser. Nothing you type is ever uploaded.

8 tools150 color pages0 sign up, no tracking
#2563EB
RGBrgb(37, 99, 235)
HSLhsl(221, 83%, 53%)
HEX#2563EB

Built for speed

Every tool runs client side, so results appear the instant you type. No round trips, no spinners, no waiting.

Private by design

Your colors and images never leave your device. There is no account, no analytics, and nothing to opt out of.

Copy ready output

Every value and every snippet has a copy button, formatted the way you would paste it straight into CSS.

A color toolkit that stays out of your way

HueKit started from a simple frustration: the small color jobs that interrupt real work. You have a hex code and need RGB for a canvas call. You want a soft, layered shadow without hand tuning six numbers. You need to know whether your body text passes contrast before you ship. Each of those is a thirty second task, and each one usually means opening a cluttered site full of ads. HueKit collects those jobs into one clean lab.

The flagship is the hex to RGB converter, the single most common conversion in front end work. From there the full converter opens up HSL, HSV and CMYK, and generates harmonies you can drop into a palette. On the CSS side, the box shadow generator, gradient generator and glassmorphism generator all produce copy ready code with a live preview.

Accessibility is a first class citizen here, not an afterthought. The contrast checker grades any text and background pair against the WCAG AA and AAA thresholds, so you can catch a failing combination before it reaches a user. And when you need inspiration, the color library gives you 150 named colors, each with a full breakdown and suggested pairings.