Hex #aa9639 or rgb(170,150,57) in RGB space is the tint of khaki. It has hue angle of 49.38 degrees, value = 67 and saturation = 66. #aa9639 can be obtained by mixing 4 colors: 5 drops of yellow, 3 drops of magenta, 1 drop of blue, 3 drops of green.
Nearest safe hex - #999933. Below you can see the block with #aa9639 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #aa9639 to the mixer and play with it.