Hex #aa9000 or rgb(170,144,0) in RGB space is the tint of khaki. It has hue angle of 50.82 degrees, value = 67 and saturation = 100. #aa9000 can be obtained by mixing 4 colors: 5 drops of yellow, 3 drops of red, 3 drops of green, 1 drop of black.
Nearest safe hex - #999900. Below you can see the block with #aa9000 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #aa9000 to the mixer and play with it.