Given the fact that it has been a few hundred years since the CF gene mutated and a lot of breeding since then a majority of the population is going to be very mixed.
Really the CF gene is supposed to have come from the Celts, I believe statistically Ireland has the highest population of CFers porportional to land size. While the original carriers of the gene might have been light skinned, blonde, blue-eyed it was due to the fact that for several years before migration and exploration the only real choice for mates among those who carried the gene was other celts, etc. Nowadays with mixed race heritages it's going to be very mixed. Especially given the dominance/regressive factors.
For a very rough example blue eyes is a recessive trait, most of the time you can only get it if both parents have blue eyes. Take for example a migrating man of celtic heritage, fits the light skinned, blond hair, blue eyes profile. He goes off to Spain and marries a brown eyed brown haired lady, blue being a recessive trait the children from the resulting relationship would most likely have brown eyes.
Very rough example of genetics and it gets a lot more complicated than that, but you get the drift.
I, myself, being of primarily western european heritage (England, Ireland, Scotland, Swedish, and a bit of German thrown in there) fit the typical light skinned, blonde, blue eyed profile.