Observing major yellow tint on IPhone Xr Display, just bought a day back.

I'm observing a yellow tint iphone Xr display which is dominantly visible on white background. I'm extremely disappointed with Apple as the demo phone in the store had a very bright Xr display which made me buy the phone instead of buying iphone X. As there was no major difference seen in the displays of both iphone Xr and X, I decided to buy Xr but now I'm regretting my decision for buying the same.

I have taken care of all the setting starting from turning off night shift to turning true tone and changing the Color tint 'Hue' and 'Intensity' values in Settings > General > Accessibility > Display Accommodations. I'm not sure how to resolve this issue?