Color.js is an open-source, high-precision JavaScript color manipulation and conversion library created by Lea Verou and Chris Lilley, co-editors of the W3C CSS Color specifications.

The main features and capabilities of Color.js include:

• Color Space Agnostic Architecture: Represents colors independently of any single space, supporting a wide range of spaces including sRGB, HSL/HSV/HWB, Display P3, Lab/LCh, OKLab/OKLCh, Jzazbz, and REC.2100.

• Full Color Science Rigor: Provides actual gamut mapping instead of naive clipping, multiple DeltaE color difference formulas (76, CMC, 2000, Jz), and several chromatic adaptation methods (von Kries, Bradford, CAT02, CAT16).

• CSS Color Level 4 Compatibility: Fully up to date with CSS Color 4 specifications, offering input parsing and stringification for all CSS Color 4 formats.

• Flexible & Object-Oriented API: Supports readable Color objects, chained coordinate manipulation, static functions, and relative property updates.

• Modular, Tree-Shakeable & Dependency-Free: Operates in client-side browsers or Node.js with zero external dependencies, providing a procedural tree-shakeable API to keep bundle sizes small.

• Color Interpolation & Range Operations: Offers built-in range generation, discrete stepping, and midpoint mixing across custom interpolation spaces.