Hex #80c640 or rgb(128,198,64) in RGB space is the tint of olive. It has hue angle of 91.34 degrees, value = 78 and saturation = 68. #80c640 can be obtained by mixing 4 colors: 3 drops of yellow, 5 drops of green, 3 drops of white, 1 drop of black.
Nearest safe hex - #99cc33. Below you can see the block with #80c640 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #80c640 to the mixer and play with it.