Hex #808780 or rgb(128,135,128) in RGB space is the tint of green. It has hue angle of 120.00 degrees, value = 53 and saturation = 5. #808780 can be obtained by mixing 4 colors: 5 drops of red, 5 drops of cyan, 1 drop of green, 1 drop of white.
Nearest safe hex - #999999. Below you can see the block with #808780 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #808780 to the mixer and play with it.