Coulur

If the screen colours appear to be distorted or unnatural, you need to check some key Accessibility settings that are intended to compensate for specific colour-vision issues:

Settings > Accessibility > Display & Text Size

Ensure that all settings enclosed within the red box above are switched OFF/Disabled.

Check Settings>Accessibility>Display & Text Size and DISABLE all the options (except the AutoBrightness at the very bottom). When done, restart your iPad and test its colors.

Regards

Giulio