Hex #89803b or rgb(137,128,59) in RGB space is the tint of yellow. It has hue angle of 53.08 degrees, value = 54 and saturation = 57. #89803b can be obtained by mixing 4 colors: 4 drops of red, 5 drops of green, 3 drops of white, 1 drop of black.
Nearest safe hex - #999933. Below you can see the block with #89803b color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #89803b to the mixer and play with it.