by steps
000000 000000
000000
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007fff
00007f 00007f
00007f
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0000ff
007f00 007f00
007f00
007f7f 007f7f
007f7f
1280e5 1280e5
1280e5
00ff00 00ff00
00ff00
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00ff7f
2581cb 2581cb
2581cb
00ffff 00ffff
00ffff
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7f007f
3883b1 3883b1
3883b1
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7f7f00
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7f7f7f
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4b8497
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5e857d 5e857d
5e857d
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718763
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ff7f00
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ff7f7f
ff7fff ff7fff
ff7fff
848849 848849
848849
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
978a30 978a30
978a30