Hex #80ac77 or rgb(128,172,119) in RGB space is the tint of grass green. It has hue angle of 109.81 degrees, value = 67 and saturation = 31. #80ac77 can be obtained by mixing 4 colors: 4 drops of yellow, 4 drops of blue, 1 drop of cyan, 1 drop of white.
Nearest safe hex - #999966. Below you can see the block with #80ac77 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #80ac77 to the mixer and play with it.