Hex #877b5b or rgb(135,123,91) in RGB space is the tint of khaki. It has hue angle of 43.64 degrees, value = 53 and saturation = 33. #877b5b can be obtained by mixing 4 colors: 5 drops of yellow, 4 drops of magenta, 5 drops of blue, 3 drops of green.
Nearest safe hex - #996666. Below you can see the block with #877b5b color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #877b5b to the mixer and play with it.