Hex #556344 or rgb(85,99,68) in RGB space is the tint of olive. It has hue angle of 87.10 degrees, value = 39 and saturation = 31. #556344 can be obtained by mixing 4 colors: 5 drops of red, 4 drops of cyan, 3 drops of green, 3 drops of black.
Nearest safe hex - #666633. Below you can see the block with #556344 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #556344 to the mixer and play with it.