culori
A general-purpose color library for JavaScript
looks-same
Pure node.js library for comparing PNG-images, taking into account human color perception.
color-diff
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.
image-q
Image Quantization Library in **TypeScript** *(MIT Licensed)*