β
Gunmetal
#516566

#516566
Primary red
51₁₆ = 81
81/255 ≈ 32 %
Primary green
65₁₆ = 101
101/255 ≈ 40 %
Primary blue
66₁₆ = 102
102/255 ≈ 40 %
Basic colors
81/255 ≈ 32 % 20/255 ≈ 8 % 1/255 ≈ 0 % 153/255 ≈ 60 %