Hex #397539 or rgb(57,117,57) in RGB space is the tint of green. It has hue angle of 120.00 degrees, value = 46 and saturation = 51. #397539 can be obtained by mixing 3 colors: 3 drops of green, 2 drops of white, 4 drops of black.
Nearest safe hex - #336633. Below you can see the block with #397539 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #397539 to the mixer and play with it.