by steps
000000 000000
000000
67879b 67879b
67879b
00007f 00007f
00007f
0000ff 0000ff
0000ff
007f00 007f00
007f00
007f7f 007f7f
007f7f
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698698
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007fff
00ff00 00ff00
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00ff7f
6b8595 6b8595
6b8595
00ffff 00ffff
00ffff
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7f007f
6d8493 6d8493
6d8493
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708490 708490
708490
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72838d 72838d
72838d
ff0000 ff0000
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74828b 74828b
74828b
ff7f00 ff7f00
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ff7f7f
ff7fff ff7fff
ff7fff
768188 768188
768188
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
798186 798186
798186