β
Olive Drab
#666333

#666333
Primary red
66₁₆ = 102
102/255 ≈ 40 %
Primary green
63₁₆ = 99
99/255 ≈ 39 %
Primary blue
33₁₆ = 51
51/255 ≈ 20 %
Basic colors
51/255 ≈ 20 % 48/255 ≈ 19 % 3/255 ≈ 1 % 153/255 ≈ 60 %