Hex #557326 or rgb(85,115,38) in RGB space is the tint of olive. It has hue angle of 83.38 degrees, value = 45 and saturation = 67. #557326 can be obtained by mixing 4 colors: 3 drops of yellow, 2 drops of blue, 1 drop of green, 3 drops of black.
Nearest safe hex - #666633. Below you can see the block with #557326 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #557326 to the mixer and play with it.