β
Steel
#9090a5

#9090a5
Primary red
90₁₆ = 144
144/255 ≈ 56 %
Primary green
90₁₆ = 144
144/255 ≈ 56 %
Primary blue
A5₁₆ = 165
165/255 ≈ 65 %
Basic colors
144/255 ≈ 56 % 21/255 ≈ 8 % 90/255 ≈ 35 %