Hex #80dc66 or rgb(128,220,102) in RGB space is the tint of grass green. It has hue angle of 106.78 degrees, value = 86 and saturation = 54. #80dc66 can be obtained by mixing 4 colors: 2 drops of yellow, 1 drop of cyan, 4 drops of green, 3 drops of white.
Nearest safe hex - #99cc66. Below you can see the block with #80dc66 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #80dc66 to the mixer and play with it.