Hex #78a84b or rgb(120,168,75) in RGB space is the tint of olive. It has hue angle of 90.97 degrees, value = 66 and saturation = 55. #78a84b can be obtained by mixing 4 colors: 4 drops of yellow, 4 drops of red, 5 drops of cyan, 4 drops of green.
Nearest safe hex - #669933. Below you can see the block with #78a84b color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #78a84b to the mixer and play with it.