Everyone sees this optical illusion differently. Does the outline look red or blue to you?

What is the colour of the outline - blue or red?, Viral News, Times Now

8 Factors That Influence How You See Colors

This perplexing optical illusion proves we shouldn't believe our eyes

Do creative people see optical illusions differently than more analytical people? - Quora

12 fascinating optical illusions show how color can trick the eye - The Washington Post

Is this BLUE or GREEN? There's a new optical illusion frustrating the web

Mind-boggling optical illusion shows you a shade of blue you've NEVER seen before

Optical Illusion: Not Everyone Can Spot The Hidden Depth In This Image!

Why do People see Different things in Optical Illusions and Why do they see it Differently? By: Molly D and Joey - What's going on in Mr. Solarz' Class?

Optical illusion proves to be a mind-bender: What do you see? - 9Honey

The boxes aren't moving… : r/blackmagicfuckery

Why you should always question your perceptions

Learning How to Un-See — Cliff Guren