Hex #99885b or rgb(153,136,91) in RGB space is the tint of khaki. It has hue angle of 43.55 degrees, value = 60 and saturation = 41. #99885b can be obtained by mixing 4 colors: 4 drops of yellow, 5 drops of red, 2 drops of blue, 4 drops of cyan.
Nearest safe hex - #999966. Below you can see the block with #99885b color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #99885b to the mixer and play with it.