Color theory

My very basic understanding of colors.

Color spaces

An algorithm or model that describes colors given a value in that model. The following are "equal" steps across two colors using different color spaces.

Color Space Colors     [1] [2] [3] [4]     x5 x8 x15
RGB (Red, Green, Blue)
HSV (Hue, Saturation, Value/Brightness)
HSI (Hue, Saturation, Intensity)
HCL (Hue, Chroma, Luminance)
LAB (Lightness, a, b) (aka CIELAB)

Color Harmonies

Color harmonies or chords are groups of colors chosen given their mathematical placement in the color space (usually given their hue).

This article from Tiger color explains color harmonies well.

Color tools

A list of tools to help you make or choose colors.

Data visualization color/palette generation

General color/palette generation

Palette collections

Color pickers

Programming with colors

Articles about colors

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