by steps
000000 000000
000000
998474 998474
998474
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00007f
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0000ff
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007f7f
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91847c
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007fff
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00ff7f
898585 898585
898585
00ffff 00ffff
00ffff
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7f007f
82858e 82858e
82858e
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7a8697
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72869f 72869f
72869f
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ff00ff
6b87a8 6b87a8
6b87a8
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ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
6387b1 6387b1
6387b1
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
5c88ba 5c88ba
5c88ba