Sanctifier En-Vec's last ability cares only what the color of the card would be in the zone it's moving from, not what it would be in the graveyard. For example, if a Clone is a copy of a red creature on the battlefield and then dies, the Clone will be exiled. Conversely, if you cast Order, the white half of the split card Order//Chaos, it will not be exiled as it resolves because it is not red before it goes to the graveyard.