I'm not sure...try #37017c 
Color numbers or whatever they're called aren't my thing.

Here's a picture of the color though.
[hider=Best color Ever][img=http://www.art-paints.com/Paints/Acrylic/Americana/Royal-Purple/Royal-Purple.gif][/hider]

Something close to that color is awesome. I like any shade of Purple and Dark blues though~