Hex #888555 or rgb(136,133,85) in RGB space is the tint of yellow. It has hue angle of 56.47 degrees, value = 53 and saturation = 38. #888555 can be obtained by mixing 4 colors: 3 drops of red, 4 drops of green, 5 drops of white, 3 drops of black.
Nearest safe hex - #999966. Below you can see the block with #888555 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #888555 to the mixer and play with it.