Hex #405f40 or rgb(64,95,64) in RGB space is the tint of green. It has hue angle of 120.00 degrees, value = 37 and saturation = 33. #405f40 can be obtained by mixing 3 colors: 2 drops of red, 3 drops of blue, 3 drops of green.
Nearest safe hex - #336633. Below you can see the block with #405f40 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #405f40 to the mixer and play with it.