Hex #78b35a or rgb(120,179,90) in RGB space is the tint of grass green. It has hue angle of 99.78 degrees, value = 70 and saturation = 50. #78b35a can be obtained by mixing 4 colors: 5 drops of yellow, 3 drops of magenta, 4 drops of cyan, 5 drops of green.
Nearest safe hex - #66cc66. Below you can see the block with #78b35a color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #78b35a to the mixer and play with it.