Copy's Material Not the Same As Original

I made a cube with a bluish material, I duplicated it and I get the same cube with exactly the same components and settings. For some reason though, the original cube's color is darkened and the duplicate adopts the original's color. They both have the same material and are under the same lighting. They are not prefabs. Why is this happening and how can I get rid of it? Here's a screenshot. The one on the right is the original cube.

Thanks