Hex #3979bd or rgb(57,121,189) in RGB space is the tint of blue. It has hue angle of 210.91 degrees, value = 74 and saturation = 70. #3979bd can be obtained by mixing 4 colors: 2 drops of magenta, 2 drops of blue, 4 drops of cyan, 1 drop of black.
Nearest safe hex - #3366cc. Below you can see the block with #3979bd color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #3979bd to the mixer and play with it.