Hex #397bb4 or rgb(57,123,180) in RGB space is the tint of blue. It has hue angle of 207.80 degrees, value = 71 and saturation = 68. #397bb4 can be obtained by mixing 4 colors: 2 drops of magenta, 3 drops of blue, 3 drops of cyan, 1 drop of green.
Nearest safe hex - #3366cc. Below you can see the block with #397bb4 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #397bb4 to the mixer and play with it.