Hex #405420 or rgb(64,84,32) in RGB space is the tint of olive. It has hue angle of 83.08 degrees, value = 33 and saturation = 62. #405420 can be obtained by mixing 4 colors: 1 drop of yellow, 1 drop of green, 1 drop of white, 5 drops of black.
Nearest safe hex - #336633. Below you can see the block with #405420 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #405420 to the mixer and play with it.