Hex #808700 or rgb(128,135,0) in RGB space is the tint of yellow. It has hue angle of 63.11 degrees, value = 53 and saturation = 100. #808700 can be obtained by mixing 4 colors: 3 drops of yellow, 3 drops of red, 5 drops of green, 1 drop of black.
Nearest safe hex - #999900. Below you can see the block with #808700 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #808700 to the mixer and play with it.