It isn't really blue, it is purple/lavender/violet. My camera just doesn't capture those colors well and I am starting the search for an additional camera. But it would be gorgeous as full-on blue, also.
I now consider this one to be a rescue, not a filch. Opened up with just half a top and no color on that side. With some TLC and a different place for it to grow, it will be beautiful all the way around.