Hex #396c7b or rgb(57,108,123) in RGB space is the tint of bluish cian. It has hue angle of 193.64 degrees, value = 48 and saturation = 54. #396c7b can be obtained by mixing 4 colors: 1 drop of red, 5 drops of blue, 2 drops of green, 1 drop of white.
Nearest safe hex - #336666. Below you can see the block with #396c7b color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #396c7b to the mixer and play with it.