by steps
000000 000000
000000
6d838a 6d838a
6d838a
00007f 00007f
00007f
0000ff 0000ff
0000ff
007f00 007f00
007f00
007f7f 007f7f
007f7f
6c808a 6c808a
6c808a
007fff 007fff
007fff
00ff00 00ff00
00ff00
00ff7f 00ff7f
00ff7f
6c7d8a 6c7d8a
6c7d8a
00ffff 00ffff
00ffff
7f0000 7f0000
7f0000
7f007f 7f007f
7f007f
6b7a8b 6b7a8b
6b7a8b
7f00ff 7f00ff
7f00ff
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7f7f7f 7f7f7f
7f7f7f
6b788b 6b788b
6b788b
7f7fff 7f7fff
7f7fff
7fff00 7fff00
7fff00
7fff7f 7fff7f
7fff7f
7fffff 7fffff
7fffff
6b758b 6b758b
6b758b
ff0000 ff0000
ff0000
ff007f ff007f
ff007f
ff00ff ff00ff
ff00ff
6a728c 6a728c
6a728c
ff7f00 ff7f00
ff7f00
ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
6a6f8c 6a6f8c
6a6f8c
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
6a6d8d 6a6d8d
6a6d8d