Hex #aa57a4 or rgb(170,87,164) in RGB space is the tint of magenta. It has hue angle of 304.34 degrees, value = 67 and saturation = 49. #aa57a4 can be obtained by mixing 4 colors: 2 drops of red, 3 drops of magenta, 4 drops of blue, 3 drops of white.
Nearest safe hex - #996699. Below you can see the block with #aa57a4 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #aa57a4 to the mixer and play with it.