Hex #aa188f or rgb(170,24,143) in RGB space is the tint of crimson. It has hue angle of 311.10 degrees, value = 67 and saturation = 86. #aa188f can be obtained by mixing 3 colors: 1 drop of red, 3 drops of magenta, 2 drops of blue.
Nearest safe hex - #990099. Below you can see the block with #aa188f color and its structure: in procentage ratio and in drops of pigments. Click "TRY" button to move #aa188f to the mixer and play with it.