Hex #776739 or rgb(119,103,57) in RGB space is the tint of khaki. It has hue angle of 44.52 degrees, value = 47 and saturation = 52. #776739 can be obtained by mixing 4 colors: 5 drops of yellow, 2 drops of red, 5 drops of blue, 3 drops of black.
Nearest safe hex - #666633. Below you can see the block with #776739 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #776739 to the mixer and play with it.