21,4,173
#
in steps
000000 000000
000000
00007f 00007f
00007f
0000ff 0000ff
0000ff
007f00 007f00
007f00
007f7f 007f7f
007f7f
05018a 05018a
05018a
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00ff00
00ff7f 00ff7f
00ff7f
0a0296 0a0296
0a0296
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00ffff
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7f007f 7f007f
7f007f
1003a1 1003a1
1003a1
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7f7f00
7f7f7f 7f7f7f
7f7f7f
1504ad 1504ad
1504ad
7f7fff 7f7fff
7f7fff
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7fff7f 7fff7f
7fff7f
7fffff 7fffff
7fffff
1a05b9 1a05b9
1a05b9
ff0000 ff0000
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2006c4 2006c4
2006c4
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ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
2507d0 2507d0
2507d0
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
2b08dc 2b08dc
2b08dc