Hex #89733b or rgb(137,115,59) in RGB space is the tint of khaki. It has hue angle of 43.08 degrees, value = 54 and saturation = 57. #89733b can be obtained by mixing 4 colors: 4 drops of red, 4 drops of green, 3 drops of white, 2 drops of black.
Nearest safe hex - #996633. Below you can see the block with #89733b color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #89733b to the mixer and play with it.