*** Welcome to piglix ***

List of 16-bit computer hardware palettes


This is a list of notable 16-bit RGB color palettes, which were primarily manufactured from 1985 to 1995. Due to mixed-bit architectures, the n-bit distinction is not always a strict categorization.

The Atari ST series has a Digital-to-Analog Converter of 3-bits, eight levels per RGB channel, featuring a 9-bit RGB palette (512 colors). The STE series has a Digital-to-Analog Converter of 4-bits, sixteen levels per RGB channel, featuring a 12-bit RGB palette (4096 colors).

Depending on the (proprietary) monitor type attached, it displays one of the 320×200, 16-colors and 640×200, 4-colors modes with the color monitor, or the high resolution 640×400 black and white mode with the monochrome monitor.

The Original Chip Set (OCS) of the Commodore Amiga features a 12-bit RGB, 4,096-color palette. As the Amiga Copper programmable graphics coprocessor is capable of changing color lookup table entries on the fly during display, in practice the number of distinct colors visible on-screen may have exceed static color lookup table sizes documented here.

The graphic surface is divided in a series of bit planes, from 1 up to 6, no matter how many horizontal (320 or 640) or vertical resolution (200 NTSC compatible, 256 PAL compatible, both interlaced or not) it has in a given graphic mode. The color lookup table has up to 32 entries. So the different indexed color modes are from 1 to 5 bits pixel depth, 2-, 4-, 8-, 16- or 32-color out of 4,096.


...
Wikipedia

...