Hex #809879 or rgb(128,152,121) in RGB space is the tint of grass green. It has hue angle of 106.45 degrees, value = 60 and saturation = 20. #809879 can be obtained by mixing 4 colors: 1 drop of magenta, 3 drops of green, 5 drops of white, 3 drops of black.
Nearest safe hex - #999966. Below you can see the block with #809879 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #809879 to the mixer and play with it.