my iPhone screen suddenly has a blue-ish tint

Hi Astersia,

Thanks for reaching out in Apple Support Communities. I understand that the display on your iPhone has a blue-ish tint where it didn't before and other aspects of the display look off color as well. I can see why you'd reach out about this; I'd like to help. It sounds like Smart Invert or Invert Colors has been enabled; take a look at the information below:

"If the colors on your display appear distorted 

If the colors on your display seem distorted, you might need to adjust the color filters. Learn how to use Display Accommodations on your iPhone, iPad, or iPod touch.

"

Get help with the display on your iPhone, iPad, or iPod touch

Let me know what you find.

Best Regards.