β
Gunmetal
#566b72

#566b72
Primary red
56₁₆ = 86
86/255 ≈ 34 %
Primary green
6B₁₆ = 107
107/255 ≈ 42 %
Primary blue
72₁₆ = 114
114/255 ≈ 45 %
Basic colors
86/255 ≈ 34 % 21/255 ≈ 8 % 7/255 ≈ 3 % 141/255 ≈ 55 %