β
Gunmetal
#406566

#406566
Primary red
40₁₆ = 64
64/255 ≈ 25 %
Primary green
65₁₆ = 101
101/255 ≈ 40 %
Primary blue
66₁₆ = 102
102/255 ≈ 40 %
Basic colors
64/255 ≈ 25 % 37/255 ≈ 15 % 1/255 ≈ 0 % 153/255 ≈ 60 %