Hex #77b255 or rgb(119,178,85) in RGB space is the tint of grass green. It has hue angle of 98.06 degrees, value = 70 and saturation = 52. #77b255 can be obtained by mixing 4 colors: 4 drops of yellow, 3 drops of red, 5 drops of cyan, 3 drops of green.
Nearest safe hex - #669966. Below you can see the block with #77b255 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #77b255 to the mixer and play with it.