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Monitors control panel 7.5

Millions of colors on a classic Mac.

24-bit color, in a RGB color space, is a color depth that can allow for up to 16,777,216 unique colors, split into three sets of 8-bit values for 256 levels per red, green, or blue channel. This is also known as "true color" on PCs and "millions" of colors on classic Mac OS. Apple Computer first introduced this colorspace to the Macintosh II series in May 1989 through 32-Bit QuickDraw.[1]


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Color depths
Bitmap | 2-bit color | 4-bit color | 8-bit color
RGB color : 16-bit color | 24-bit color | 32-bit color
Deep color : 48-bit color | 64-bit color | 96-bit color | 128-bit color