You can make changes in the Ease of Access settings in Windows 8 to make it easier to see. Press the "Windows key"+U to open the Ease of Access menu. You can enter high contrast mode there, which may help, depending on the person.
colorblind mode in windows 8 Hold down the Fn key and press F6 for dimmer or F7 for brighter screen.
No laptops do not have a color blind setting.
Laptops do have a adjustment for the screen brightness and resolution.