Hex #55a347 or rgb(85,163,71) in RGB space is the tint of grass green. It has hue angle of 110.87 degrees, value = 64 and saturation = 56. #55a347 can be obtained by mixing 3 colors: 1 drop of magenta, 4 drops of green, 1 drop of white.
Nearest safe hex - #669933. Below you can see the block with #55a347 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #55a347 to the mixer and play with it.