Everything you need to work with color.

Use

Free color tools

Pull a palette from any photo, convert between HEX, RGB, CMYK, and Pantone, and grab a ready-made palette. Nothing to install, nothing to sign up for.

Open the Color Extractor All tools

Learn

Color, explained plainly

Short guides to color formats, theory, and printing, written for designers rather than physicists.

Start with the basics All guides

Play

Games that train your eye

A new Color Grid and five new Hue Match colors every day, plus speed rounds whenever you want one. How sharp is your eye?

Play today’s Color Grid All games

Use

The toolkit

All tools →
Images → palettes Color Extractor Upload a photo or screenshot, drag sampling nodes to the exact pixels you want, and export the palette. Export CSS · JSON · ACO · GPL Screen ↔ print Color Converter One color in every format: HEX, RGB, CMYK, HSL, and the nearest Pantone, updated as you type. HEX · RGB · CMYK · HSL · Pantone Ready to use Color Palettes Build your own palette, or browse a new one every day plus a hand-picked collection. Copy as HEX codes or CSS variables. Create · daily · hand-picked

Palette of the day

Today’s palette

A new five-color palette every day.

Browse all palettes →

Convert any color

Paste HEX, RGB, HSL, CMYK, or a Pantone code. Click any value to copy it.

#2387FF
Sample text on this color

Try

Tints and shades

Text contrast

3.52:1 on white Large text only
5.96:1 on black Passes AA
Open the full Color Converter →

Learn

Guides by topic

All guides →
New to color? Start with What are HEX Colors?, then work through the formats in order.

Color formats

HEX, RGB, HSL, CMYK, and Pantone: what each is for and when to use it.

Color theory

Harmony, value, temperature, and building palettes that work together.

Light, screens & print

Why the same color looks different on paper, on phones, and in daylight.

Play

Pick a game

All games →
Daily puzzle Color Grid Sort the tiles into a smooth gradient, lightest to darkest. A new grid every day, from Easy to Expert. New grid daily · 2–5 min Daily puzzle Hue Match Match colors by eye with hue, saturation, and lightness sliders. Five daily colors, or a whole palette in Swatch Match. Daily · Swatch Match Speed round Odd One Out One tile is a slightly different shade. Find it, then the next. Play at your own pace or race the clock. Progressive · Timed Skill builder Read the Hex See a hex code, pick the matching color. Learn to read #RRGGBB at a glance. Endless · 3 lives