Hex #555d39 or rgb(85,93,57) in RGB space is the tint of lime. It has hue angle of 73.33 degrees, value = 36 and saturation = 39. #555d39 can be obtained by mixing 4 colors: 3 drops of red, 2 drops of cyan, 2 drops of green, 2 drops of black.
Nearest safe hex - #666633. Below you can see the block with #555d39 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #555d39 to the mixer and play with it.