Learn

Guides

Practical walkthroughs for building and validating color in production. OKLCH scales, WCAG contrast, and the accessibility lens.

OKLCH shade scale
Build perceptually uniform shade scales in OKLCH. Why OKLCH beats HSL and RGB, how to set lightness curves and chroma decay, and how to generate a full 50 to 950 scale in seconds.9 min read
WCAG AA vs AAA
Most product UIs need AA. Some need AAA. The contrast math, the legal context (EAA, WCAG 2.2 ISO), and a clear decision framework, plus how to test contrast in seconds.8 min read
Designing for color blindness
About 300 million people worldwide have color vision deficiency. The "do not use red and green" advice is incomplete. The four main types, the patterns that actually work, and the simulator to test with.9 min read