Hex #399baa or rgb(57,155,170) in RGB space is the tint of bluish cian. It has hue angle of 187.96 degrees, value = 67 and saturation = 66. #399baa can be obtained by mixing 4 colors: 1 drop of yellow, 1 drop of red, 3 drops of blue, 4 drops of cyan.
Nearest safe hex - #339999. Below you can see the block with #399baa color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #399baa to the mixer and play with it.