Hex #999877 or rgb(153,152,119) in RGB space is the tint of yellow. It has hue angle of 58.24 degrees, value = 60 and saturation = 22. #999877 can be obtained by mixing 4 colors: 5 drops of red, 3 drops of cyan, 3 drops of green, 4 drops of white.
Nearest safe hex - #999966. Below you can see the block with #999877 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #999877 to the mixer and play with it.