In this video, you will see grey circles turn into circles of different colors (green, yellow, red, and purple) before your very eyes.  The bubbles are absolutely colorless (the same color as the background), but when the screen alternates between the colored circles and bubbles, phantom colors begin to appear.

This illusion was a top 10 finalist for the 2016 Illusion of the Year Contest.  It was created by Mark Vergeer, Stuart Anstis and Rob van Lier from the University of Leuven, Belgium, Radboud University Nijmegen, The Netherlands, and UC San Diego, USA.

Other Optical Illusions You Might Enjoy

Peace 3D Stereogram Optical Illusion Video

8

Moving Snakes Motion Illusion

8

Delboeuf Illusion

8

Dual Axis Illusion

8

All Is Vanity by Charles Allan Gilbert

8

Charlie Chaplin Optical Illusion

8