Hex #87aa78 or rgb(135,170,120) in RGB space is the tint of grass green. It has hue angle of 102.00 degrees, value = 67 and saturation = 29. #87aa78 can be obtained by mixing 4 colors: 4 drops of red, 3 drops of cyan, 5 drops of green, 5 drops of white.
Nearest safe hex - #999966. Below you can see the block with #87aa78 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #87aa78 to the mixer and play with it.