I doubt the color of you hives has anything to do with queen laying.
Q; How do you know the colony in question is queenright? If not laying she is queenwrong
and you 'might' have a problem, although bees slow down , some even stop laying as winter approaches.
Q; If bees are in cluster how do you know there is no capped brood? The cluster may be hiding it, that is very likely.
Advise; If feeding hives in a yard especially during Fall, either feed them all or make certain entrances are reduced or you may find one has robbed out the other.