Lightness Packages

A color picker tool that creates a grid of hues and lightness steps.

Color converter - hexadecimal, RGB, HSL, CSS and more.

a customisable color wheel package for react native apps

APCA: the Accessible Perceptual Contrast Algorithm, a modern contrast method that improves readability contrast on self-illuminated displays. Developed for the W3C's WCAG 3 and other standards.

Library for converting colour codes and manipulating relative luminance and contrast ratio

Javascript Class for determining color names

An accessible color interface

A library for parsing colors within the sRGB color space. it includes rgb(a), hsl(a), hsv(a), hex and cmyk. It mainly focuses on web standards, which is why it has build in css support. However, it may be used in any application that follows the css color

A mini package for color conversion not bloated with functions you will never use

A color tool library written in Typescript, you can use it to convert color spaces, and operate on colors like LESS/SASS ( darken/lighten, saturate/desaturate, spin, mix), and color difference query. 颜色工具库，支持颜色空间的转换、各种颜色操作、多种色差查询, 支持中国色、日本色的查询

Delta Phi Star is a general purpose method of determining perceptual lightness contrast developed by Andrew Somers (Myndex Research), and is a sibling of APCA and SACAM. It is a simplified method using easily invertible standardized maths, however it lack