β
Gunmetal
#455757

#455757
Primary red
45₁₆ = 69
69/255 ≈ 27 %
Primary green
57₁₆ = 87
87/255 ≈ 34 %
Primary blue
57₁₆ = 87
87/255 ≈ 34 %
Basic colors
69/255 ≈ 27 % 18/255 ≈ 7 % 168/255 ≈ 66 %