Hex #506530 or rgb(80,101,48) in RGB space is the tint of olive. It has hue angle of 83.77 degrees, value = 40 and saturation = 52. #506530 can be obtained by mixing 4 colors: 5 drops of red, 3 drops of cyan, 5 drops of green, 3 drops of black.
Nearest safe hex - #666633. Below you can see the block with #506530 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #506530 to the mixer and play with it.