Hex #555956 or rgb(85,89,86) in RGB space is the tint of bluish green. It has hue angle of 135.00 degrees, value = 35 and saturation = 4. #555956 can be obtained by mixing 4 colors: 3 drops of yellow, 1 drop of magenta, 5 drops of blue, 3 drops of black.
Nearest safe hex - #666666. Below you can see the block with #555956 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #555956 to the mixer and play with it.