Mix colors, in any of the supported color spaces, right from your CSS.

Poline draws lines between anchors over polar coordinates to generate pleasing color palettes.

OKLCH is a new way to encode colors (like hex, RGBA, or HSL)

Thoughts and resources from years of work exploring color and building tools to work with color.

CSS gives us so many options when it comes to expressing color—we can use hex codes, rgb, hsl, and more. Which option should we choose?

CSS Color Module 4 adds oklch() to define CSS colors human-readable, predictable contrast (better a11y), wide-gamut P3 colors.

Get random, accessible color combinations

Learn about the benefits, and disadvantages of dark mode and what you should consider when creating a dark theme.

Andrew Somers shares his experience about the hard-fought battles and lessons learned designing for illuminated presentations.

Alphredo generates translucent colors looking the same as their opaque counterparts when placed against the same background.

Color & Contrast is a comprehensive guide to color for user interface designers.

Gray pigments are all over our homes and our products. But despite what TikTokers claim, the rainbow is still alive and well.

Generational marketing research and trends tell us that there just might be a shade for every age.

I wanted really bright colours on my site, but in order to do that I needed to delve into a rabbit hole of using Display-P3 colour in CSS.

So, CSS Color 4 adds Wide Color Gamut colors to CSS. But what is a gamut, anyway?

This post has been long overdue: Chris and I started working on Color.js in 2020, over 2 years ago!

We knew that, although meticulously crafted, our current 7-color design system was very limiting and not suited for all use cases.

Our science-backed approach to updating a color system that supports over 100 products.

Way back in 2014, a Dutch manuscript from about mixing watercolors from 1692 made a splash in the blogosphere.

Learn why the GitHub Design Infrastructure team built a dedicated color tool and how they use it to create new color palettes for GitHub.