Hex #625b3b or rgb(98,91,59) in RGB space is the tint of khaki. It has hue angle of 49.23 degrees, value = 38 and saturation = 40. #625b3b can be obtained by mixing 4 colors: 2 drops of yellow, 3 drops of red, 3 drops of cyan, 5 drops of black.
Nearest safe hex - #666633. Below you can see the block with #625b3b color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #625b3b to the mixer and play with it.