Hex #55772b or rgb(85,119,43) in RGB space is the tint of olive. It has hue angle of 86.84 degrees, value = 47 and saturation = 64. #55772b can be obtained by mixing 3 colors: 2 drops of yellow, 1 drop of cyan, 3 drops of black.
Nearest safe hex - #666633. Below you can see the block with #55772b color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #55772b to the mixer and play with it.