Hex #55be44 or rgb(85,190,68) in RGB space is the tint of grass green. It has hue angle of 111.64 degrees, value = 75 and saturation = 64. #55be44 can be obtained by mixing 4 colors: 5 drops of yellow, 4 drops of cyan, 4 drops of green, 2 drops of black.
Nearest safe hex - #66cc33. Below you can see the block with #55be44 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #55be44 to the mixer and play with it.