How to get the final color of an object after light hits it?

Question

Unity

I want to light the scene with ambient light using the color type. But no matter what color of light I choose, the color of the materials changes. But I want the objects to keep the exact color that is specified in the material, because the light for my game is not needed at all, everything needs to be lit. How to get the final color of the object after the light of a certain color falls on it? Or how to turn off the light altogether so that everything is in the original colors (those in the png picture or material)?