Hex #80d64d or rgb(128,214,77) in RGB space is the tint of grass green. It has hue angle of 97.66 degrees, value = 84 and saturation = 64. #80d64d can be obtained by mixing 3 colors: 2 drops of yellow, 5 drops of green, 3 drops of white.
Nearest safe hex - #99cc66. Below you can see the block with #80d64d color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #80d64d to the mixer and play with it.