SiteDesign Tools & Generators · Color
Color system builder that generates full tonal scales from a few seeds and checks WCAG and APCA across every pairing.
Why it’s a gem
Treats color as a system with a contrast grid, not a pretty five-swatch strip.
Searchable archive of roughly 23,000 colour palettes extracted from 3,000 painters' artworks, with a colour wheel and image analyser.
Terminal, chart, heatmap and UI palettes engineered to stay distinguishable after aggressive Redshift or Night Shift warm-screen filtering.
Archive of every solid desktop background colour shipped by classic operating systems: 194 colours across 22 platforms, 1985 to 2024.
Spacebar-driven palette generator with 10M+ browsable palettes, image colour extraction, contrast checking, gradient tools and palette mockup previews.
Builds custom palettes in the HSLuv color space with live WCAG and APCA contrast checks, exporting to Tailwind, CSS and Figma.
Generative random-color explorer with perceptual distance controls, color-blindness preview and a genuinely playful interface.