Harvard Extension School Spring 2017
CSCI E-12 Fundamentals of Web Site Development
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Color Depth
RGB color is a 24-bit system (16 million colors)
8 bits (256 colors) for each channel (red, green, blue).
2
8
x2
8
x2
8
= 2
(8 + 8 + 8)
= 2
24
x = 16,777,216
Bits
Colors
1
2
1
= 2
2
2
2
= 4
3
2
3
= 8
4
2
4
= 16
5
2
5
= 32
6
2
6
= 64
7
2
7
= 128
8
2
8
= 256
16
2
16
= 65,536
24
2
24
= 17 x 10
6
(
millions
)
32
2
32
= 4.3 x 10
9
TOC
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