OKLCH: A Perceptually Uniform Color Model Revolutionizing Design
2025-08-25

OKLCH is a new color model designed for perceptual uniformity, offering a significant improvement over traditional models like RGB and HSL. It more accurately reflects how humans perceive color, making color manipulation easier. Based on the OKLab color space, OKLCH uses Lightness, Chroma, and Hue values. Maintaining consistent lightness while changing hue creates visually uniform palettes, while varying lightness produces shades without hue or saturation drift. OKLCH also excels in gradients, color space support, and maximum chroma definition. Modern browsers support it well. The author created oklch.fyi, a tool for generating OKLCH palettes and converting colors.
(jakub.kr)