β
Gunmetal
#406668

#406668
Primary red
40₁₆ = 64
64/255 ≈ 25 %
Primary green
66₁₆ = 102
102/255 ≈ 40 %
Primary blue
68₁₆ = 104
104/255 ≈ 41 %
Basic colors
64/255 ≈ 25 % 38/255 ≈ 15 % 2/255 ≈ 1 % 151/255 ≈ 59 %