How to make two different cameras view a material in two different colors?

How can one make a camera with a specific layer/tag view a material/object in a specific color? Lets say all objects in a scene are using the same white material and camera one sees them blue but camera two sees them in red based on a tag or something of the camera? Is it possible and/or is it rocket science xP? Can a camera perceive a material by giving it a different color for herself, without changing it?