Both sets have absolutely the same color, just the background changed. The upper chess set is black and the bottom set is black, right? Wrong.
Yellow Dog vs Blue Dog - both of them have the same color. Just use a finger to cover the place where both parts meet and you'll see. Surface color of both A and B parts is identical. Use any color picker, graphic program or simply cover the remainder with your hand to see for yourself. White)īelieve it or not, but the pieces A/B/C all have the same color. If you don't believe, use any eyedropper tool or print/cut the squares to verify that both square A and square B are precisely the same.Īll grey rectangles are of equal luminance, although the ones in the dark stripes appear brighter than the ones in the bright stripes. However, color on both squares is precisely the same shade of grey. Square marked B looks considerably lighter than square A, due to the 'shadow' being cast upon it. Adelson) depicts something hard to believe. Also known as Adelson's checker shadow illusion (published by Edward H.
