by steps
000000 000000
000000
728b8d 728b8d
728b8d
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00007f
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0000ff
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007f7f
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768a90
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007fff
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00ff7f
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7a8a94
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00ffff
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7f8997
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7f7f7f
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83899b
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7fffff
87899e 87899e
87899e
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8c88a2
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ff7f00
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ff7f7f
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ff7fff
9088a5 9088a5
9088a5
ffff00 ffff00
ffff00
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ffff7f
ffffff ffffff
ffffff
9588a9 9588a9
9588a9