I have Millennium Falcon in bloom now.
It has blue standards and purple falls.

Just checked Zebra Gardens and they describe
the falls as a rich royal blue-purple.

Here is a link that might be useful: Zebra Gardens

I haven't grown it, but I have seen it in person.

This is what it looked like in Mae Porch's garden during last year's convention.

{{gwi:1011532}}

Brock