color-stats
Generate color information based off of the hash of any object (or a valid color string)
lumino
A simple library for handling conversion of color models (such as rgb, rgba, hex, hsl, etc) and generating different color harmonies (such as complementary, monochromatic, etc).
@chiarapassaro/color-palettes-range
Now you can generate more than three or five colors palette: take a Complementary Palette or a Random Dominant Palette, and you can decide how many colors you want!