by steps
000000 000000
000000
728d3d 728d3d
728d3d
00007f 00007f
00007f
0000ff 0000ff
0000ff
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007f00
007f7f 007f7f
007f7f
639b55 639b55
639b55
007fff 007fff
007fff
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00ff7f
55a96d 55a96d
55a96d
00ffff 00ffff
00ffff
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7f0000
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7f007f
47b785 47b785
47b785
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7f7f7f
39c69e 39c69e
39c69e
7f7fff 7f7fff
7f7fff
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7fff00
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7fff7f
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7fffff
2ad4b6 2ad4b6
2ad4b6
ff0000 ff0000
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ff007f
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ff00ff
1ce2ce 1ce2ce
1ce2ce
ff7f00 ff7f00
ff7f00
ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
0ef0e6 0ef0e6
0ef0e6
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff