by steps
000000 000000
000000
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7f7fff
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00007f
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0000ff
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007f7f 007f7f
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007fff
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00ff00
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00ff7f
728dfb 728dfb
728dfb
00ffff 00ffff
00ffff
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7f007f
6c94f9 6c94f9
6c94f9
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669cf7 669cf7
669cf7
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5fa3f5 5fa3f5
5fa3f5
ff0000 ff0000
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59aaf3 59aaf3
59aaf3
ff7f00 ff7f00
ff7f00
ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
53b1f1 53b1f1
53b1f1
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
4db9f0 4db9f0
4db9f0