Hex #405d2b or rgb(64,93,43) in RGB space is the tint of olive. It has hue angle of 94.80 degrees, value = 36 and saturation = 54. #405d2b can be obtained by mixing 4 colors: 3 drops of red, 3 drops of blue, 5 drops of green, 1 drop of black.
Nearest safe hex - #336633. Below you can see the block with #405d2b color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #405d2b to the mixer and play with it.