Hex #80dd55 or rgb(128,221,85) in RGB space is the tint of grass green. It has hue angle of 101.03 degrees, value = 87 and saturation = 62. #80dd55 can be obtained by mixing 4 colors: 2 drops of yellow, 1 drop of cyan, 2 drops of green, 1 drop of white.
Nearest safe hex - #99cc66. Below you can see the block with #80dd55 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #80dd55 to the mixer and play with it.