Hex #397568 or rgb(57,117,104) in RGB space is the tint of greenish cian. It has hue angle of 167.00 degrees, value = 46 and saturation = 51. #397568 can be obtained by mixing 4 colors: 5 drops of blue, 4 drops of green, 4 drops of white, 5 drops of black.
Nearest safe hex - #336666. Below you can see the block with #397568 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #397568 to the mixer and play with it.