Hex #557055 or rgb(85,112,85) in RGB space is the tint of green. It has hue angle of 120.00 degrees, value = 44 and saturation = 24. #557055 can be obtained by mixing 4 colors: 2 drops of red, 3 drops of blue, 3 drops of green, 1 drop of white.
Nearest safe hex - #666666. Below you can see the block with #557055 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #557055 to the mixer and play with it.