Hex #5b8831 or rgb(91,136,49) in RGB space is the tint of olive. It has hue angle of 91.03 degrees, value = 53 and saturation = 64. #5b8831 can be obtained by mixing 4 colors: 3 drops of yellow, 2 drops of red, 4 drops of blue, 5 drops of green.
Nearest safe hex - #669933. Below you can see the block with #5b8831 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #5b8831 to the mixer and play with it.