Hex #aa781d or rgb(170,120,29) in RGB space is the tint of khaki. It has hue angle of 38.72 degrees, value = 67 and saturation = 83. #aa781d can be obtained by mixing 4 colors: 3 drops of yellow, 3 drops of red, 2 drops of magenta, 4 drops of green.
Nearest safe hex - #996633. Below you can see the block with #aa781d color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #aa781d to the mixer and play with it.