Dear belMarduk: Forgive me, but I rejoice that a knowledgeable lady can be baffled by the fashion ads. It would surprise me if what the store that used that word had merchandise even remotely resembling the dictionary definition which you of course knew. I think my computer color is a pastel beige blended with a tiny touch of taupe.
Beige is sure not close to Italian bigi which I have seen defined flatly as gray.