Color is the visualisation of light. There are two systems of primary color - R-G-B (red-green-blue) and C-M-Y (cyan-magenta-yellow). Objects "get" color by reflecting only specific parts of light. Black is the absence of light - if an object is black, it absorbs all light.

Most computers have a range of 16888216 distinct colors (24-bit), or 65536 (16-bit).

Grids: Limited, RGB, CMYK