by steps
000000 000000
000000
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ff0000
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00007f
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0000ff
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007f7f
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f71104
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007fff
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00ff7f
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ef2209
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00ffff
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e8330e e8330e
e8330e
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e04513
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7fffff
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d85617
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d1671c
ff7f00 ff7f00
ff7f00
ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
c97821 c97821
c97821
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
c28a26 c28a26
c28a26