Hex #80b240 or rgb(128,178,64) in RGB space is the tint of olive. It has hue angle of 86.32 degrees, value = 70 and saturation = 64. #80b240 can be obtained by mixing 3 colors: 2 drops of yellow, 1 drop of cyan, 1 drop of black.
Nearest safe hex - #999933. Below you can see the block with #80b240 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #80b240 to the mixer and play with it.