by steps
000000 000000
000000
fb1b8b fb1b8b
fb1b8b
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00007f
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0000ff
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f51d8a
007fff 007fff
007fff
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00ff7f 00ff7f
00ff7f
ef1f8a ef1f8a
ef1f8a
00ffff 00ffff
00ffff
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e92189 e92189
e92189
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e32489
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7fffff
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dd2689
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d72888 d72888
d72888
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ff7f7f
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ff7fff
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d12a88
ffff00 ffff00
ffff00
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ffff7f
ffffff ffffff
ffffff
cb2d88 cb2d88
cb2d88