Hex #398eaf or rgb(57,142,175) in RGB space is the tint of bluish cian. It has hue angle of 196.78 degrees, value = 69 and saturation = 67. #398eaf can be obtained by mixing 4 colors: 5 drops of blue, 5 drops of cyan, 4 drops of white, 4 drops of black.
Nearest safe hex - #339999. Below you can see the block with #398eaf color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #398eaf to the mixer and play with it.