Hex #3973a1 or rgb(57,115,161) in RGB space is the tint of blue. It has hue angle of 206.54 degrees, value = 63 and saturation = 65. #3973a1 can be obtained by mixing 4 colors: 4 drops of blue, 1 drop of cyan, 2 drops of white, 2 drops of black.
Nearest safe hex - #336699. Below you can see the block with #3973a1 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #3973a1 to the mixer and play with it.