Hex #403420 or rgb(64,52,32) in RGB space is the tint of khaki. It has hue angle of 37.50 degrees, value = 25 and saturation = 50. #403420 can be obtained by mixing 4 colors: 2 drops of red, 1 drop of cyan, 1 drop of green, 4 drops of black.
Nearest safe hex - #333333. Below you can see the block with #403420 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #403420 to the mixer and play with it.