Hex #406f2b or rgb(64,111,43) in RGB space is the tint of grass green. It has hue angle of 101.47 degrees, value = 44 and saturation = 61. #406f2b can be obtained by mixing 4 colors: 4 drops of yellow, 4 drops of blue, 3 drops of green, 5 drops of black.
Nearest safe hex - #336633. Below you can see the block with #406f2b color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #406f2b to the mixer and play with it.