Hex #789d78 or rgb(120,157,120) in RGB space is the tint of green. It has hue angle of 120.00 degrees, value = 62 and saturation = 24. #789d78 can be obtained by mixing 4 colors: 5 drops of red, 5 drops of cyan, 4 drops of green, 3 drops of white.
Nearest safe hex - #669966. Below you can see the block with #789d78 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #789d78 to the mixer and play with it.