by steps
000000 000000
000000
ca8509 ca8509
ca8509
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0000ff
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00ff7f
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b4870d
00ffff 00ffff
00ffff
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7f007f
a9880f a9880f
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888c15 888c15
888c15
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ff7f7f
ff7fff ff7fff
ff7fff
7d8d17 7d8d17
7d8d17
ffff00 ffff00
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ffff7f
ffffff ffffff
ffffff
728f1a 728f1a
728f1a