Hex #aaa12b or rgb(170,161,43) in RGB space is the tint of yellow. It has hue angle of 55.75 degrees, value = 67 and saturation = 75. #aaa12b can be obtained by mixing 3 colors: 3 drops of yellow, 1 drop of white, 2 drops of black.
Nearest safe hex - #999933. Below you can see the block with #aaa12b color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #aaa12b to the mixer and play with it.