Hex #397e76 or rgb(57,126,118) in RGB space is the tint of cyan. It has hue angle of 173.04 degrees, value = 49 and saturation = 55. #397e76 can be obtained by mixing 4 colors: 4 drops of red, 5 drops of blue, 5 drops of cyan, 4 drops of green.
Nearest safe hex - #336666. Below you can see the block with #397e76 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #397e76 to the mixer and play with it.