Hex #78a564 or rgb(120,165,100) in RGB space is the tint of grass green. It has hue angle of 101.54 degrees, value = 65 and saturation = 39. #78a564 can be obtained by mixing 4 colors: 4 drops of yellow, 4 drops of magenta, 4 drops of cyan, 5 drops of green.
Nearest safe hex - #669966. Below you can see the block with #78a564 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #78a564 to the mixer and play with it.