As you increase the amount of data, you dramatically increase the number of minute differences in color you can represent.
Bits per pixel | Monochrome shades | Colors |
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1 bit/color/pixel | 2 | 8 |
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2 bits/color/pixel | 4 | 64 |
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3 bits/color/pixel | 8 | 512 |
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4 bits/color/pixel | 16 | 4,096 |
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5 bits/color/pixel | 32 | 32,768 |
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6 bits/color/pixel | 64 | 262,144 |
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7 bits/color/pixel | 128 | 2,097,152 |
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8 bits/color/pixel | 256 | 16,777,216 |
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