TypeScript color space management and conversion library — 30+ color spaces (RGB/HSL/CMYK, perceptual Lab/OKLab, wide-gamut/HDR, Munsell) via BFS-dispatched conversion, plus ΔE, WCAG contrast, CVD simulation, gamut mapping, blending, CCT, and CSS Color 4

Gamut queries and mapping for RGB display gamuts: in-gamut checks, CSS Color 4 gamut mapping, naive clipping, max chroma per (L, h), and the deltaEOK metric.

Generate accessible color palettes from brand colors. Drop-in compatible with Radix, Tailwind, and Panda CSS.

Wide event logging for Effect — one rich structured event per request

IcoMo — 434 SVG icons (402 system icons + 32 country flags) as tree-shakeable React components, framework-agnostic SVG strings, TypeScript definitions, and SVG sprite

Let users toggle colors

Find broken links, missing images, etc in your HTML.

Prettier Plugin for Twig

Color palettes calculator of Ant Design

a javascript porting of C's wcwidth()

Simple key-value storage with support for multiple backends

Modern TypeScript logger — simple logs, wide events, structured errors. Built for scripts, libraries, jobs, edge, and HTTP. One drain pipeline everywhere.

oklch, but better: a correctly-gamut-clamped oklch() and a Helmholtz-Kohlrausch lightness-compensated oklchhk() — that partially-evaluate their trig away at build time. Static hue ⇒ zero runtime trig.

Collaborative comments feature for CKEditor 5.

TODO

TODO

TODO

Tailwind plugin for switching color theme with just one className

CKEditor 5 track changes plugin.

An arbitrary-precision Decimal type for JavaScript.