Hex #8ece68 or rgb(142,206,104) in RGB space is the tint of grass green. It has hue angle of 97.65 degrees, value = 81 and saturation = 50. #8ece68 can be obtained by mixing 4 colors: 2 drops of yellow, 1 drop of blue, 3 drops of green, 3 drops of white.
Nearest safe hex - #99cc66. Below you can see the block with #8ece68 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #8ece68 to the mixer and play with it.