Hex #37587a or rgb(55,88,122) in RGB space is the tint of blue. It has hue angle of 210.45 degrees, value = 48 and saturation = 55. #37587a can be obtained by mixing 4 colors: 3 drops of red, 4 drops of blue, 4 drops of cyan, 3 drops of black.
Nearest safe hex - #336666. Below you can see the block with #37587a color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #37587a to the mixer and play with it.