Hex #aa8839 or rgb(170,136,57) in RGB space is the tint of khaki. It has hue angle of 41.95 degrees, value = 67 and saturation = 66. #aa8839 can be obtained by mixing 4 colors: 3 drops of yellow, 1 drop of red, 2 drops of white, 3 drops of black.
Nearest safe hex - #999933. Below you can see the block with #aa8839 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #aa8839 to the mixer and play with it.