Hex #555022 or rgb(85,80,34) in RGB space is the tint of yellow. It has hue angle of 54.12 degrees, value = 33 and saturation = 60. #555022 can be obtained by mixing 4 colors: 5 drops of red, 2 drops of cyan, 4 drops of green, 4 drops of black.
Nearest safe hex - #666633. Below you can see the block with #555022 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #555022 to the mixer and play with it.