I placed a white pillow and a white tray on a white carpet. The whites are very different and the picture shows the different hues of white. The tray looks grey than white. The others make it look not white at all. The carpet has more of a yellow tint. The pillow had more of a creamy tan white when compared to the others.
Changing the light didn’t make much of a difference because my lights weren’t strong in the first person making the room dark from the start. But the darker it got the more defie the different tints and hues got.