by steps
000000 000000
000000
728c18 728c18
728c18
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0000ff
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637a24
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00ff7f
556931 556931
556931
00ffff 00ffff
00ffff
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47573e 47573e
47573e
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39464b 39464b
39464b
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2a3458
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1c2365
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ff7f7f
ff7fff ff7fff
ff7fff
0e1172 0e1172
0e1172
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff