Hex #4d8a00 or rgb(77,138,0) in RGB space is the tint of olive. It has hue angle of 86.52 degrees, value = 54 and saturation = 100. #4d8a00 can be obtained by mixing 4 colors: 2 drops of yellow, 1 drop of red, 5 drops of green, 2 drops of black.
Nearest safe hex - #669900. Below you can see the block with #4d8a00 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #4d8a00 to the mixer and play with it.