Palette Lab

Generate beautiful, perceptually balanced colour palettes using seven OKLCH harmony modes — random, analogous, complementary, split-complementary, triadic, tetradic, and monochrome. Lock individual swatches, shuffle hues, balance lightness, add or remove colours (2–12), import hex lists, and explore tints & shades. Simulate colour-vision deficiencies (Brettel protan/deutan/tritan), inspect WCAG 2.2 & APCA contrast, CIEDE2000 ΔE₀₀ metrics, CIE xy gamut coverage, role-based UI preview, batch generation, and harmony comparison. Full export to JSON, CSV, SVG, PNG, CSS Custom Properties, and shareable URL. Press Space to generate a new random palette. Zero network calls — all computation on-device.

7 Harmony Modes OKLCH Perceptual CVD Simulation WCAG & APCA CIEDE2000 On-Device Zero Network

OKLCH palette generator by Auric Artisan Color Science Platform.

💡 Quick Start: In the Lab tab, choose a harmony mode and colour count, then press Generate Random or hit Space. Click any swatch to copy its HEX. Toggle the lock icon to keep a colour across regenerations. Use Shuffle Hue, Balance Lightness, Add / Remove to fine-tune. The Actions tab has all copy & export options. Research for hue wheel, lightness, chroma, gamut, CVD simulation, contrast matrix, tints & shades, role preview, batch generation, and harmony comparison. Keyboard: Space random · A analogous · C complementary · T triadic · D tetradic · L toggle lock on colour 1.

Press Space or click Generate to create a palette

MODE

COUNT 5

SEED

CVD

Actions & Exports

Copy to Clipboard

Copy palette data in various formats. Shareable link encodes colours, locks, mode, and seed in the URL hash.

Download Files

JSON includes full OKLCH, HSL, contrast ratios, and lock state. SVG is a colored stripe with HEX labels. PNG is a 1-pixel-tall image with one column per colour.