Hex #4e8f00 or rgb(78,143,0) in RGB space is the tint of olive. It has hue angle of 87.27 degrees, value = 56 and saturation = 100. #4e8f00 can be obtained by mixing 3 colors: 4 drops of yellow, 5 drops of green, 4 drops of black.
Nearest safe hex - #669900. Below you can see the block with #4e8f00 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #4e8f00 to the mixer and play with it.