β
Gunmetal
#526666

#526666
Primary red
52₁₆ = 82
82/255 ≈ 32 %
Primary green
66₁₆ = 102
102/255 ≈ 40 %
Primary blue
66₁₆ = 102
102/255 ≈ 40 %
Basic colors
82/255 ≈ 32 % 20/255 ≈ 8 % 153/255 ≈ 60 %