Hex #87713c or rgb(135,113,60) in RGB space is the tint of khaki. It has hue angle of 42.40 degrees, value = 53 and saturation = 56. #87713c can be obtained by mixing 4 colors: 5 drops of red, 5 drops of green, 4 drops of white, 3 drops of black.
Nearest safe hex - #996633. Below you can see the block with #87713c color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #87713c to the mixer and play with it.