high color - Computer Definition
The ability to generate 32,768 colors (15 bits) or 65,536 colors (16-bit). 15-bit color uses five bits for each red, green and blue pixel. The 16th bit may be a color, such as XGA with 5-red, 6-green and 5-blue, or be an overlay bit that selects pixels to display over video input. See true color.