Color tools

Test any color pair against WCAG 2.2 and APCA in one view. Live preview, OKLCH-based fix suggestions, color blindness simulation.

Paste any color — hex, rgb, hsl, oklch, or a CSS name — and get every other format plus copy-ready code snippets for CSS, Tailwind, Swift, Android, Flutter.

Build palettes with complementary, analogous, triadic, tetradic, split-complementary, square, and monochromatic schemes.

Build linear, radial, and conic CSS gradients with OKLCH interpolation. Compare side by side with sRGB to see the mud-zone disappear.

Build soft multi-color mesh gradients from draggable points. OKLCH-harmonized, export free PNG or copy pure CSS with no WebGL required.

Drop any photo and extract its dominant palette with k-means clustering in OKLab. 100% local — your images never leave your browser.

See a palette on a real UI mockup — nav, hero, cards, forms — with live WCAG contrast checks that flag unreadable combinations as you edit.

Reference for every default Tailwind v4 color. Search by name, copy HEX or OKLCH with one click, and read why v4 ships in OKLCH.

Build a 50→950 tonal scale from any color using OKLCH — perceptually uniform across hues, ready to drop into Tailwind v4 or CSS variables.

Mix two colors in sRGB, OKLab, or OKLCH — side by side, so the muddy sRGB midpoint is impossible to miss.

Test an entire palette against 8 forms of color vision deficiency at once — see whether your red, green, and amber collapse into a single color.

All 147 CSS named colors in one searchable, sortable grid. Click any swatch to copy, view by hue or lightness.

Paste any color and find the closest human-readable name from a curated dictionary of about 300 colors.

Search sourced brand color palettes from social, developer, streaming, finance, commerce, and productivity brands.

Generate random HEX colors and palettes with pastel, vivid, dark, warm, and cool constraints.