color-space — every color space, one tiny API, verified

An open collection of color spaces. Convert any space to any other with conventional ranges and independently anchored formulas.

Is my blue your blue?

Test your color perception with this interactive test.

The Color API

The best color conversion, naming and scheming API out there.

Shader Color

Shader Color is three groundbreaking typefaces that reimagine our existing design Shader for its Color Font debut. Shader 16 boasts bright 16-bit pixels. Shader 64 revels in shiny 64-bit chrome. Shader Glitch conjures a future where technology conspires against us.

Storied Colors

Storied Colors: named colors with documented histories.

Tyrian Purple - ColourLex

Tyrian purple is one of the oldest, most valued and most expensive pigments. It had been first produced from shellfish in the city of Tyre.

How to Choose Colors for Your CLI Applications · Luna’s Blog

Let’s say you’re creating a CLI tool which has to display syntax highlighted source code. You begin by choosing some colors which look nice with your chosen terminal theme:

una.im | Modern CSS theming with light-dark(), contrast-color(), and style queries

Combine three new CSS features to build fully adaptive themed components.

Reasonable Colors

Yes. Reasonable Colors is open-source (the annotated source-code is available on Github) and released under the MIT license. The color specimen document is also available to download as a PDF, JPEG, and WEBP image.

What's My JND?

Find your Just Noticeable Difference in colour perception. How small a colour difference can you actually see?

The Color System I Wish I Understood Sooner

Does your system for naming colors always feel like it falls short? This two-layer approach solves so many problems!

Flat UI Colors 2 - 14 Color Palettes, 280 colors 🎨

280 handpicked colors ready for COPY & PASTE