Hex #87b87d or rgb(135,184,125) in RGB space is the tint of grass green. It has hue angle of 109.83 degrees, value = 72 and saturation = 32. #87b87d can be obtained by mixing 4 colors: 4 drops of yellow, 5 drops of blue, 3 drops of green, 5 drops of white.
Nearest safe hex - #99cc66. Below you can see the block with #87b87d color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #87b87d to the mixer and play with it.