Menu

Individual skill

color-oklch

0upvotes

Use when building a design token system, creating accessible colour palettes, generating colour ramps programmatically, or migrating a design system to support wide-gamut displays.

skills/color-oklch/SKILL.md

Read pinned source

Source commit e8d14d049010e2ce25afcd5e8609dfcbbe63e47e

What was checked

Matches the observed repository HEAD
Yes
Scanner rules are current
Yes
Repository scan complete
No
Skill scan complete
Yes
Observed behavior
Instructions only
Last checked
Nov 9, 2026

These are observations at the recorded commit, not a guarantee of safety. Review the source before running it.

Install this skill

Choose an agent in your Stack or copy a command below. Commands fetch the pinned commit and copy only this skill directory. Existing destinations are refused. Copying a command does not install anything.

An install command is unavailable: current rules, complete repository and skill scans, an eligible behavior level and a permitted license are required.

Repository context

Repository stars (not skill ratings)
74,686
Repository last updated
Oct 31, 2026
License
MIT

Observed agent integration: No specific integration evidence. Standard SKILL.md installation does not imply verified compatibility.

Files and excerpt

File metadata and permitted, redacted excerpts come from the recorded scan. Source links are pinned to that commit.

Browse files
Read excerpt

# Use oklch() and oklab() for perceptually uniform colour palettes

HSL and hex colours are defined in the sRGB colour space, which is not perceptually uniform — a 10 % lightness change looks dramatically different depending on the hue. This makes creating accessible, harmonious palettes by hand extremely difficult. oklch corrects this: adjusting the L channel produces the same perceived brightness change regardless of hue or chroma, making it far easier to build accessible colour ramps, dark-mode palettes, and consistent hover/active states.

## Quick Reference

- oklch(L C H) — Lightness, Chroma, Hue — is the most practical perceptually uniform colour space for design systems
- Equal lightness steps in oklch look equal to the human eye; equal steps in hsl do not
- Define your colour palette tokens in oklch custom properties
- Use @media (color-gamut: p3) to serve wide-gamut colours to capable displays

## Check

Check whether the CSS colour tokens use oklch() or a perceptually uniform colour space, or whether they use hsl/hex which may produce inconsistent perceived lightness across hues.
Back to top