Hex #aa2a1d or rgb(170,42,29) in RGB space is the tint of red. It has hue angle of 5.53 degrees, value = 67 and saturation = 83. #aa2a1d can be obtained by mixing 3 colors: 4 drops of red, 1 drop of blue, 1 drop of green.
Nearest safe hex - #993333. Below you can see the block with #aa2a1d color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #aa2a1d to the mixer and play with it.