Hex #397b68 or rgb(57,123,104) in RGB space is the tint of greenish cian. It has hue angle of 162.73 degrees, value = 48 and saturation = 54. #397b68 can be obtained by mixing 4 colors: 2 drops of magenta, 2 drops of blue, 1 drop of cyan, 4 drops of green.
Nearest safe hex - #336666. Below you can see the block with #397b68 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #397b68 to the mixer and play with it.