β
Gunmetal
#515d5b

#515d5b
Primary red
51₁₆ = 81
81/255 ≈ 32 %
Primary green
5D₁₆ = 93
93/255 ≈ 36 %
Primary blue
5B₁₆ = 91
91/255 ≈ 36 %
Basic colors
81/255 ≈ 32 % 10/255 ≈ 4 % 2/255 ≈ 1 % 162/255 ≈ 64 %