by steps
000000 000000
000000
0000ff 0000ff
0000ff
00007f 00007f
00007f
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007f00
007f7f 007f7f
007f7f
0316e8 0316e8
0316e8
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007fff
00ff00 00ff00
00ff00
00ff7f 00ff7f
00ff7f
062dd1 062dd1
062dd1
00ffff 00ffff
00ffff
7f0000 7f0000
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7f007f
0944ba 0944ba
0944ba
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7f7f00
7f7f7f 7f7f7f
7f7f7f
0c5ba3 0c5ba3
0c5ba3
7f7fff 7f7fff
7f7fff
7fff00 7fff00
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7fff7f 7fff7f
7fff7f
7fffff 7fffff
7fffff
0f728c 0f728c
0f728c
ff0000 ff0000
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ff007f
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128975 128975
128975
ff7f00 ff7f00
ff7f00
ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
15a05e 15a05e
15a05e
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
19b747 19b747
19b747