Unity Colors become weird when scene changed

I was creating a start scene for my project. I added my 2 tracks and 2 buttons and when I started the game and select one colors were off

It looked like this instead of:

How can I make the game look like the second one again?

This may be due to lightning .
Lighting must not be baked or auto generate lightning must be off.
just open lightning tab from windows>Rendering>Lightning Settings. and turn on Auto Generate Lightning. this may fix your problem