Hex #394939 or rgb(57,73,57) in RGB space is the tint of green. It has hue angle of 120.00 degrees, value = 29 and saturation = 22. #394939 can be obtained by mixing 4 colors: 2 drops of red, 2 drops of cyan, 1 drop of green, 4 drops of black.
Nearest safe hex - #333333. Below you can see the block with #394939 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #394939 to the mixer and play with it.