Hex #8fc580 or rgb(143,197,128) in RGB space is the tint of grass green. It has hue angle of 106.96 degrees, value = 77 and saturation = 35. #8fc580 can be obtained by mixing 4 colors: 5 drops of yellow, 4 drops of cyan, 4 drops of white, 3 drops of black.
Nearest safe hex - #99cc99. Below you can see the block with #8fc580 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #8fc580 to the mixer and play with it.