β
Sea
#519999

#519999
Primary red
51₁₆ = 81
81/255 ≈ 32 %
Primary green
99₁₆ = 153
153/255 ≈ 60 %
Primary blue
99₁₆ = 153
153/255 ≈ 60 %
Basic colors
81/255 ≈ 32 % 72/255 ≈ 28 % 102/255 ≈ 40 %