Explore the OpenColors Registry

Browse named colors with owners, dates, and votes. Copy-ready HEX, RGB, HSL, CSS, and Tailwind tokens for designers and developers.

Search by name or owner, sort by recency or votes, and filter by hue, saturation, and lightness. Open a color to visualize it, jump to the canvas, or lock a new name.

Every named color is available through the free OpenColors API and MCP tools. No key is required for reads. Example: GET /api/v1/color/FF0055.

Lookup API
https://opencolors.org/api/v1/color/{hex}
Newest named
https://opencolors.org/api/registry/newest
Search
https://opencolors.org/api/search?q=

Frequently asked questions

What is the OpenColors registry?

A public, searchable list of named colors with hex values, owners, dates, and votes. Designers can copy HEX, RGB, HSL, CSS variables, and Tailwind tokens.

How do I look up a named color?

Search the registry by name or owner, or call GET /api/v1/color/{hex}. Reads are free and do not require an API key.

Can I sort or filter named colors?

Yes. Sort by name, owner, date, hex, or votes, and filter by hue, saturation, and lightness ranges.

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Global Color Registry

Explore the OpenColors Registry

Browse named colors with owners, dates, and votes. Copy-ready HEX, RGB, HSL, CSS, and Tailwind tokens for designers and developers. Jump directly to visualize, open on the canvas, or lock a new name.

Sort
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Not yet named

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Visualize

See this color on real products

Visualize this color

Color Palette

Colors that compliment your color

Contrast Checker

WCAG 2.1 thresholds for light and dark surfaces

AA / AAA

White background

WCAG contrast

5.7:1
5.7

contrast ratio on a white background

Small text
AA
AAA
Large text
AA
AAA
UI element
AA
AAA

Black background

WCAG contrast

3.69:1
3.69

contrast ratio on a black background

Small text
AA
AAA
Large text
AA
AAA
UI element
AA
AAA

Color Blindness Simulator

Preview common vision types for this hue

#7C3AED

Protanopia

Simulated vision

#5F5FC2
#7C3AED#5F5FC2

Deuteranopia

Simulated vision

#6368B7
#7C3AED#6368B7

Tritanopia

Simulated vision

#799F98
#7C3AED#799F98

Achromatopsia

Simulated vision

#626262
#7C3AED#626262

For developers

Every color is available via the OpenColors API and MCP tools. No key required for reads.

fetch('https://opencolors.org/api/v1/color/FF0055')
  .then(res => res.json())
  .then(data => console.log(data.color));
View API docs•Generate palettes•Visualize on products

Design token quick-copy

Open any card to copy HEX, RGB, HSL, a CSS variable, or a Tailwind utility. Use “Open on canvas” to view in the 16.7M grid.

Copy HEX/RGB/HSLCSS var & TailwindOpen on canvasVisualize & name
Named Color Registry (30,046+) | OpenColors