Hex #78b669 or rgb(120,182,105) in RGB space is the tint of grass green. It has hue angle of 108.31 degrees, value = 71 and saturation = 42. #78b669 can be obtained by mixing 4 colors: 5 drops of yellow, 3 drops of magenta, 5 drops of cyan, 4 drops of green.
Nearest safe hex - #66cc66. Below you can see the block with #78b669 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #78b669 to the mixer and play with it.