Board Thread:Skyrim/@comment-12323841-20130716084813/@comment-1470368-20150824152031

Quite the speculation involving Karliah.

Some think that it's really because of her heritage. She's likely not 100% pure Dunmer.

Race may depend on the mother in TES, but some traits of the father do get passed down. Some among Karliah's ancestors must've at least had blue eyes.