Hex #778772 or rgb(119,135,114) in RGB space is the tint of grass green. It has hue angle of 105.71 degrees, value = 53 and saturation = 16. #778772 can be obtained by mixing 4 colors: 3 drops of red, 4 drops of blue, 4 drops of green, 4 drops of white.
Nearest safe hex - #669966. Below you can see the block with #778772 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #778772 to the mixer and play with it.