When you see a color on your MacBook Pro, it usually means something is wrong with the screen. This orange color can look like patches. It can happen because the screen got too hot, something pressed on it, water got inside, or the screen is just getting old. Sometimes the color of the screen can change because of things like True Tone or Night Shift which're features that change the color of the screen.
If the orange color goes away when you turn off these features or restart your MacBook Pro, then the problem is probably with the software.. If the orange color is still there no matter what you are looking at, then it is probably a problem with the hardware inside the screen. If you see spots on your screen, they will not just go away on their own, and they might get worse over time. In this case, you should have a look at your orange discoloration macbook pro, and you might need to replace the screen to make it work properly again.