Hex #39495f or rgb(57,73,95) in RGB space is the tint of blue. It has hue angle of 214.74 degrees, value = 37 and saturation = 40. #39495f can be obtained by mixing 4 colors: 2 drops of magenta, 2 drops of cyan, 1 drop of green, 4 drops of black.
Nearest safe hex - #333366. Below you can see the block with #39495f color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #39495f to the mixer and play with it.