Hex #aa8f40 or rgb(170,143,64) in RGB space is the tint of khaki. It has hue angle of 44.72 degrees, value = 67 and saturation = 62. #aa8f40 can be obtained by mixing 4 colors: 4 drops of yellow, 1 drop of red, 3 drops of white, 4 drops of black.
Nearest safe hex - #999933. Below you can see the block with #aa8f40 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #aa8f40 to the mixer and play with it.