β
Gunmetal
#405e64

#405e64
Primary red
40₁₆ = 64
64/255 ≈ 25 %
Primary green
5E₁₆ = 94
94/255 ≈ 37 %
Primary blue
64₁₆ = 100
100/255 ≈ 39 %
Basic colors
64/255 ≈ 25 % 30/255 ≈ 12 % 6/255 ≈ 2 % 155/255 ≈ 61 %