Hex #99a711 or rgb(153,167,17) in RGB space is the tint of yellow. It has hue angle of 65.60 degrees, value = 65 and saturation = 90. #99a711 can be obtained by mixing 4 colors: 4 drops of yellow, 1 drop of red, 1 drop of magenta, 4 drops of green.
Nearest safe hex - #999900. Below you can see the block with #99a711 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #99a711 to the mixer and play with it.