I think you mean to say Cattlianthe [Ctt.] Caribbean Skies (Ctt. Ariel x C. warneri). It was hybridized in 1974 by Stewart, Inc. It is mostly C. warneri with some C. bowringiana and C. gaskelliana. All of those are pink so I would expect to be on the pink side of the color pallet. I'm not sure how rare it is.
Jim