Hex #665222 or rgb(102,82,34) in RGB space is the tint of khaki. It has hue angle of 42.35 degrees, value = 40 and saturation = 67. #665222 can be obtained by mixing 4 colors: 4 drops of red, 4 drops of green, 2 drops of white, 5 drops of black.
Nearest safe hex - #666633. Below you can see the block with #665222 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #665222 to the mixer and play with it.