Hex #87b76e or rgb(135,183,110) in RGB space is the tint of grass green. It has hue angle of 99.45 degrees, value = 72 and saturation = 40. #87b76e can be obtained by mixing 4 colors: 5 drops of yellow, 5 drops of blue, 3 drops of green, 4 drops of white.
Nearest safe hex - #99cc66. Below you can see the block with #87b76e color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #87b76e to the mixer and play with it.