Could be "Retinal fatigue" where your cone cells get tired of a color. The shadows are a bit strange on that photo, looks like 2 or three lamps? Shadows could

Could be "Retinal fatigue" where your cone cells get tired of a color. The shadows are a bit strange on that photo, looks like 2 or three lamps? Shadows could make it act like the "Checker shadow illusion. " Both of these are aspects of human visual "Color constancy" https://en.wikipedia.org/wiki/Color_constancy https://en.wikipedia.org/wiki/Color_constancy