Hex #aaa66a or rgb(170,166,106) in RGB space is the tint of yellow. It has hue angle of 56.25 degrees, value = 67 and saturation = 38. #aaa66a can be obtained by mixing 3 colors: 3 drops of yellow, 5 drops of white, 4 drops of black.
Nearest safe hex - #999966. Below you can see the block with #aaa66a color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #aaa66a to the mixer and play with it.