Hex #555026 or rgb(85,80,38) in RGB space is the tint of yellow. It has hue angle of 53.62 degrees, value = 33 and saturation = 55. #555026 can be obtained by mixing 4 colors: 1 drop of red, 2 drops of magenta, 4 drops of green, 2 drops of black.
Nearest safe hex - #666633. Below you can see the block with #555026 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #555026 to the mixer and play with it.