Pinkish screen and apple logo MBPr 2015

So when I was prepping for exams, I looked up from my white piece of paper to the MBPr's screen and really noticed that it had a subtle pink tint. I also realized that the apple logo is also a bit tinted as well as they are the result of the same backlight. Is this common? If not, should I get it serviced? I tried resetting the PRAM but no luck so far....

Logo color compared to a piece of letter paper