β
Ultramarine
#210abc

#210abc
Primary red
21₁₆ = 33
33/255 ≈ 13 %
Primary green
0A₁₆ = 10
10/255 ≈ 4 %
Primary blue
BC₁₆ = 188
188/255 ≈ 74 %
Basic colors
10/255 ≈ 4 % 23/255 ≈ 9 % 155/255 ≈ 61 % 67/255 ≈ 26 %