Hex #80bf66 or rgb(128,191,102) in RGB space is the tint of grass green. It has hue angle of 102.47 degrees, value = 75 and saturation = 47. #80bf66 can be obtained by mixing 4 colors: 4 drops of yellow, 3 drops of cyan, 1 drop of white, 2 drops of black.
Nearest safe hex - #99cc66. Below you can see the block with #80bf66 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #80bf66 to the mixer and play with it.