Hex #888544 or rgb(136,133,68) in RGB space is the tint of yellow. It has hue angle of 57.35 degrees, value = 53 and saturation = 50. #888544 can be obtained by mixing 4 colors: 4 drops of yellow, 4 drops of magenta, 2 drops of blue, 5 drops of green.
Nearest safe hex - #999933. Below you can see the block with #888544 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #888544 to the mixer and play with it.