Hex #39685f or rgb(57,104,95) in RGB space is the tint of greenish cian. It has hue angle of 168.51 degrees, value = 41 and saturation = 45. #39685f can be obtained by mixing 3 colors: 2 drops of magenta, 3 drops of blue, 4 drops of green.
Nearest safe hex - #336666. Below you can see the block with #39685f color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #39685f to the mixer and play with it.