Implemets the CIEDE2000 color difference algorithm, conversion between RGB and LAB color and mapping all colors in palette X to the closest or most different color in palette Y based on the CIEDE2000 difference.

Classify the color along the reference color. using algorithm the CIEDE2000, RGB, HSV.

Perceptual colour utilities: CIEDE2000 distance, WCAG contrast, OKLCH lightness scales, and nearest-named-colour.

Offline Pantone color matching CLI with book metadata, CIEDE2000 matching, and API-export maintenance tools.

Library to calculate DeltaE (CIEDE2000) values between two colors

蛋蛋拼豆核心库：图片转拼豆图纸，CIEDE2000 感知配色

Is your palette colorblind-safe? Check and fix color palettes for color-vision deficiency (protan, deutan, tritan) with the published OpticQuiz engine — Machado 2009 + CIEDE2000.

Generate, check, and fix colorblind-safe color palettes — protanopia, deuteranopia, tritanopia. Built on the published OpticQuiz engine (Machado 2009 + CIEDE2000) with the Okabe-Ito safe palette.

MCP server that lets an LLM (Claude, Cursor, etc.) check whether a palette OR an image is colorblind-safe, simulate color-vision deficiency, and check WCAG contrast — built on the published OpticQuiz engine (Machado 2009 + CIEDE2000).

Color accessibility engine. Checks palettes for colorblind-safety (protan/deutan/tritan, Machado 2009, scored with CIEDE2000), fixes failing palettes, and checks WCAG contrast. Zero dependencies.

Generate Ishihara-style pseudoisochromatic color-vision test plates — a digit hidden in a dot field that collapses under protanopia, deuteranopia, or tritanopia. Reproducible from a seed. Built on the OpticQuiz engine (Machado 2009 + CIEDE2000).

Image Quantization Library in **TypeScript** *(MIT Licensed)*

color segmentation using kmeans+++ for clustering and CIEDE2000 algorithm for color distance

Classify the color along the reference color. using algorithm the CIEDE2000, RGB, HSV.

Keep a watchful eye on your css colors

PostCSS processor to keep a watchful eye on your css colors

Find the nearest named color for any hex, RGB, HSL, or HSV value. One color-naming API for any palette: identify, resolve, and convert color names across your own palette or sixteen built-in sets (CSS, X11, Pantone, Crayola, NTC, XKCD, RAL, Tailwind, Rese

Find the color difference between the two colors and determine if they are similar

CLI to keep a watchful eye on your css colors

> 输入一个主色 HEX，自动生成 10 级色阶、14 级中性色阶、浅色 / 深色双模式，并直接输出可落地的 **TDesign CSS 变量**（`--td-brand-color` / `--td-gray-color` 等）。