Hex #80bf40 or rgb(128,191,64) in RGB space is the tint of olive. It has hue angle of 89.76 degrees, value = 75 and saturation = 66. #80bf40 can be obtained by mixing 4 colors: 2 drops of yellow, 3 drops of green, 2 drops of white, 1 drop of black.
Nearest safe hex - #99cc33. Below you can see the block with #80bf40 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #80bf40 to the mixer and play with it.