My Samsung Galaxy s6 screen has a yellow tint?

A

AC Question

This barely started happening. I turned on my phone and it was kind of yellowish. My background is just plain black and even that looks like it's yellow on my home screen. I don't have auto brightness on and I have an adaptive display. I tried changing my displays to AMOLED and all the other ones and it was still yellowish. I turned it off and on twice and it was still like that. It seems to be yellow only when I'm on vertical mode, because every time I turn it sideways it goes back to normal. So far all apps are like that, except the settings. When I go to my settings, even if it's vertical, it's not yellowish.
Here is a link showing how a picture of flowers looks on my phone vs how the original photo looks:

http://s33.p ostimg.org/vq0tijq9r/Screen_Shot_2016_06_10_at_12_49_00_AM.png

The yellow looks a little downplayed, but the yellow is not a slight tint and it very apparent and annoying. How can I fix this? What even is it?