Hex #399fc7 or rgb(57,159,199) in RGB space is the tint of bluish cian. It has hue angle of 196.90 degrees, value = 78 and saturation = 71. #399fc7 can be obtained by mixing 4 colors: 3 drops of blue, 3 drops of cyan, 2 drops of white, 1 drop of black.
Nearest safe hex - #3399cc. Below you can see the block with #399fc7 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #399fc7 to the mixer and play with it.