Hex #80c66a or rgb(128,198,106) in RGB space is the tint of grass green. It has hue angle of 105.65 degrees, value = 78 and saturation = 46. #80c66a can be obtained by mixing 4 colors: 5 drops of yellow, 1 drop of red, 5 drops of cyan, 1 drop of black.
Nearest safe hex - #99cc66. Below you can see the block with #80c66a color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #80c66a to the mixer and play with it.