iPhone XS iPhone XS - rainbow pattern on screen at off angles

[Bryolith]

When I tilt my iPhone XS at larger angles, I’m seeing some rainbow patterns (looks like rings or lines) in addition to some color shift to blue. Are these rainbow patterns normal behavior for OLED screens? This is my first OLED phone so I’m not sure what counts as normal

 

[Newtons Apple]

Yes it is normal. My MAX does it.

Even LCD screen would shift colors at angles.