Hex #5b5531 or rgb(91,85,49) in RGB space is the tint of khaki. It has hue angle of 51.43 degrees, value = 36 and saturation = 46. #5b5531 can be obtained by mixing 3 colors: 5 drops of red, 4 drops of blue, 5 drops of green.
Nearest safe hex - #666633. Below you can see the block with #5b5531 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #5b5531 to the mixer and play with it.