Hex #555e47 or rgb(85,94,71) in RGB space is the tint of olive. It has hue angle of 83.48 degrees, value = 37 and saturation = 24. #555e47 can be obtained by mixing 4 colors: 1 drop of yellow, 1 drop of blue, 1 drop of white, 3 drops of black.
Nearest safe hex - #666633. Below you can see the block with #555e47 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #555e47 to the mixer and play with it.