Hex #33556f or rgb(51,85,111) in RGB space is the tint of blue. It has hue angle of 206.00 degrees, value = 44 and saturation = 54. #33556f can be obtained by mixing 4 colors: 2 drops of red, 2 drops of blue, 3 drops of cyan, 3 drops of black.
Nearest safe hex - #336666. Below you can see the block with #33556f color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #33556f to the mixer and play with it.