Hex #20436b or rgb(32,67,107) in RGB space is the tint of blue. It has hue angle of 212.00 degrees, value = 42 and saturation = 70. #20436b can be obtained by mixing 4 colors: 1 drop of red, 5 drops of blue, 1 drop of green, 1 drop of black.
Nearest safe hex - #333366. Below you can see the block with #20436b color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #20436b to the mixer and play with it.