Hex #aa90d5 or rgb(170,144,213) in RGB space is the tint of purple. It has hue angle of 262.61 degrees, value = 84 and saturation = 32. #aa90d5 can be obtained by mixing 4 colors: 3 drops of magenta, 3 drops of blue, 1 drop of cyan, 5 drops of white.
Nearest safe hex - #9999cc. Below you can see the block with #aa90d5 color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #aa90d5 to the mixer and play with it.