I have been too long out of university to remember my genetics clearly any more. Isn't a 'complex' a family of alleles that produce a certain trait?

A BEL from a mojave x mojave or lesser x lesser or lesser x mojave. Lesser and mojave (phantom, mocha, russo, and what ever I am forgetting) are part of the BEL complex. But correct me if I am wrong, a BEL (blue eyed leucistic) complex isn't a morph just a group of morphs?