Hex #b18b42 or rgb(177,139,66) in RGB space is the tint of khaki. It has hue angle of 39.46 degrees, value = 69 and saturation = 63. #b18b42 can be obtained by mixing 4 colors: 5 drops of yellow, 4 drops of red, 2 drops of blue, 2 drops of cyan.
Nearest safe hex - #999933. Below you can see the block with #b18b42 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #b18b42 to the mixer and play with it.