Hex #407a40 or rgb(64,122,64) in RGB space is the tint of green. It has hue angle of 120.00 degrees, value = 48 and saturation = 48. #407a40 can be obtained by mixing 3 colors: 2 drops of magenta, 1 drop of blue, 5 drops of green.
Nearest safe hex - #336633. Below you can see the block with #407a40 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #407a40 to the mixer and play with it.