JSPM

Collection of color space conversions

A general-purpose color library for JavaScript

Determines the best contrast color to use. Give it a background color and it returns a foreground color (black or white by default but customizable).

Converts hex color to rgb and calculates appropriate corresponding foreground.

Returns light when a color is dark and dark when a color is light (and a little more).

Color utilities for Node.js

Determine if a color in RGB format is dark using YIQ calculation

Function to calculate the YIQ value of a color in RGB format

functions which help to work with RGB, HEX, YIQ, HSV colours

Returns whether the given rgb color array has a YIQ brightness value of less than 128 (50% brightness).