Hex #558350 or rgb(85,131,80) in RGB space is the tint of green. It has hue angle of 114.12 degrees, value = 51 and saturation = 39. #558350 can be obtained by mixing 4 colors: 3 drops of yellow, 2 drops of magenta, 5 drops of blue, 5 drops of green.
Nearest safe hex - #669966. Below you can see the block with #558350 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #558350 to the mixer and play with it.