Hex #aa281d or rgb(170,40,29) in RGB space is the tint of red. It has hue angle of 4.68 degrees, value = 67 and saturation = 83. #aa281d can be obtained by mixing 4 colors: 1 drop of yellow, 2 drops of red, 1 drop of magenta, 2 drops of black.
Nearest safe hex - #993333. Below you can see the block with #aa281d color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #aa281d to the mixer and play with it.