Hex #396e7b or rgb(57,110,123) in RGB space is the tint of bluish cian. It has hue angle of 191.82 degrees, value = 48 and saturation = 54. #396e7b can be obtained by mixing 4 colors: 2 drops of magenta, 3 drops of blue, 1 drop of cyan, 3 drops of green.
Nearest safe hex - #336666. Below you can see the block with #396e7b color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #396e7b to the mixer and play with it.