Hex #665e50 or rgb(102,94,80) in RGB space is the tint of khaki. It has hue angle of 38.18 degrees, value = 40 and saturation = 22. #665e50 can be obtained by mixing 4 colors: 4 drops of magenta, 5 drops of green, 2 drops of white, 4 drops of black.
Nearest safe hex - #666666. Below you can see the block with #665e50 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #665e50 to the mixer and play with it.