The "official" liturgical color actually is violet, even for Laetare Sunday (and Gaudete Sunday in Advent). Rose vestments, however, are authorized for wear--and, in most people's opinion (I think), are more appropriate given the tradition of Rose vestments the two days in the year.
When I was in the Novus Ordo, the parish I was in had beautiful Rose vestments, obviously from long before Vatican 2. The visiting priest (we did not have a resident priest), however, brought his own vestments--and they were HOT PINK! It was horrid! Believe me, if those vestments your priest has are hot pink, you don't want to see him in them.