21,72,127
#
in steps
000000 000000
000000
0000ff 0000ff
0000ff
00007f 00007f
00007f
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007f00
007f7f 007f7f
007f7f
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00ff7f 00ff7f
00ff7f
0a24bf 0a24bf
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00ffff
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7f007f
10369f 10369f
10369f
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7f7f7f 7f7f7f
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7fffff 7fffff
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1a5a5f 1a5a5f
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ff0000 ff0000
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206c3f
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ff7fff
257e1f 257e1f
257e1f
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
2b9100 2b9100
2b9100