Hex #80de6d or rgb(128,222,109) in RGB space is the tint of grass green. It has hue angle of 109.91 degrees, value = 87 and saturation = 51. #80de6d can be obtained by mixing 4 colors: 3 drops of yellow, 2 drops of cyan, 5 drops of green, 4 drops of white.
Nearest safe hex - #99cc66. Below you can see the block with #80de6d color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #80de6d to the mixer and play with it.