Hex #5b9500 or rgb(91,149,0) in RGB space is the tint of olive. It has hue angle of 83.36 degrees, value = 58 and saturation = 100. #5b9500 can be obtained by mixing 3 colors: 5 drops of yellow, 5 drops of green, 4 drops of black.
Nearest safe hex - #669900. Below you can see the block with #5b9500 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #5b9500 to the mixer and play with it.