Hex #80ac39 or rgb(128,172,57) in RGB space is the tint of olive. It has hue angle of 82.96 degrees, value = 67 and saturation = 67. #80ac39 can be obtained by mixing 3 colors: 3 drops of yellow, 2 drops of blue, 1 drop of green.
Nearest safe hex - #999933. Below you can see the block with #80ac39 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #80ac39 to the mixer and play with it.