myndex/colorparsley

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.

See Stars • a lightweight set of utilities to take an sRGB or displayP3 color, and extract the CIE Y relative luminance, and then convert to CIE L* (perceptual lightness). Takes RGB colors as simple arrays (as created with colorParsley). Bonus utilities to covert from L* back to Y, and from Y back to an achromatic greyscale in sRGB or P3.

MyriadJS is a flexible theme managment library that allows you to create semantic color themes that are easy to change retroactivley

Umbra is a theme managment library that allows you to create semantic color themes that are easy to dynamically customize, change retroactively and scale progressively

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 lacks some useful APCA properties such as polarity sensitivity.

A simple library to generate Computational Theming Colors.

A Bridge for WCAG_2 contrast using APCA (Advanced Perceptual Contrast Algorithm), technology.