Blue girl?

A few months ago we planted roses around the driveway in front of the house. We already had two arizona sunset, but filled in with Lincoln (red) and Blue girls (ummm... these are blue...).

So the first roses of the fill-ins with buds were the blue girls. I was so excited since we had previously planted them only to watch them wither, blacken, and turn into thorny twigs fit only for kindling. And the first bud left little to be desired. A small light pink bloom. And I thought that maybe it was just because it was becoming established.

So last week, the buds came again on the blue girls. And this time, a much larger bud had appeared. And yesterday it started to open. Today it fully opened. There was a much fuller bud than the last, but still no luck on the blue. Another light pink rose rilled in.

Has anyone else had blue girls? Anyone familiar enough to maybe provide some advice? Is there something I can do to aid in the blue-ness of my blue girls? Any idea why they aren't blue? I look forward to any responses with advice and perhaps someone else can also benefit.