Hex #779f66 or rgb(119,159,102) in RGB space is the tint of grass green. It has hue angle of 102.11 degrees, value = 62 and saturation = 36. #779f66 can be obtained by mixing 4 colors: 4 drops of red, 3 drops of cyan, 5 drops of green, 3 drops of white.
Nearest safe hex - #669966. Below you can see the block with #779f66 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #779f66 to the mixer and play with it.