how i use duplicate scene in Unity with different roads or platform color with same prefab using in previous scene?

I want to use duplicate scene in Unity with different roads or platform color with same prefab use in scene 1 but when i changed color from my duplicate scene colors of materials also changes in previous scene i make duplicate prefabs for this too but nothing work for me?

rather than making duplicate prefabs, create duplicate materials, because if you change the color or texture in one scene, if the materials are same, it will effect both the scenes, create different materials, and assign it runtime that would be good, or you can duplicate the prefabs and use different materials in those prefabs