ColorUtil

Build, inspect, generate, and save color palettes in one focused workspace. Tune colors across multiple color spaces, shuffle harmonies in the generator, and turn palettes into usable light and dark UI themes.

Open workspace Build a theme Generate palettes

Theme Builder

Promote palette colors into interface roles, preview them against real components, and adjust light and dark surfaces without leaving the app.

Theme Builder helps you check buttons, panels, text emphasis, borders, form fields, and contrast-sensitive states before you commit a palette to a product direction.

Open Theme Builder Start from generator

Workspace

Pick and edit colors with RGB, HEX, HSL, LAB, OKLCH, CMYK, and other color spaces side by side.

Generator

Create palette ideas quickly, lock colors you like, adjust chaos, and save the result into your palette library.

Theme Builder

Map palettes to UI roles, compare light and dark variants, and preview real controls before exporting a theme direction.

Saved Palettes

Keep palettes in the browser with IndexedDB, then sync them to your account when you log in.