Looks like a pink/beige color to me.

The only way I can see the correct values is to cut two holes that correspond to squares A and B in a sheet of paper and then overlay it on the image.This is one of the most disturbing images I know of., I've seen it before, and tried to forget it. You cannot make your eyes see both squares as the same value no matter how hard you try .
As an analogy; of being judged by the company you keep, on pre-conceived notions, etc... the limits of our senses....dangers of provincialism...