21,123,255
#
in steps
000000 000000
000000
1e7aff 1e7aff
1e7aff
00007f 00007f
00007f
0000ff 0000ff
0000ff
007f00 007f00
007f00
007f7f 007f7f
007f7f
1b7aff 1b7aff
1b7aff
007fff 007fff
007fff
00ff00 00ff00
00ff00
00ff7f 00ff7f
00ff7f
197aff 197aff
197aff
00ffff 00ffff
00ffff
7f0000 7f0000
7f0000
7f007f 7f007f
7f007f
177bff 177bff
177bff
7f00ff 7f00ff
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7f7f00
7f7f7f 7f7f7f
7f7f7f
157bff 157bff
157bff
7f7fff 7f7fff
7f7fff
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7fff7f 7fff7f
7fff7f
7fffff 7fffff
7fffff
127bff 127bff
127bff
ff0000 ff0000
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107cff 107cff
107cff
ff7f00 ff7f00
ff7f00
ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
0e7cff 0e7cff
0e7cff
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
0c7dff 0c7dff
0c7dff