Hex #78a873 or rgb(120,168,115) in RGB space is the tint of green. It has hue angle of 114.34 degrees, value = 66 and saturation = 32. #78a873 can be obtained by mixing 4 colors: 4 drops of yellow, 4 drops of magenta, 5 drops of cyan, 4 drops of green.
Nearest safe hex - #669966. Below you can see the block with #78a873 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #78a873 to the mixer and play with it.