Optical Illusion Divides Internet Over Dot Colors

Imagine a picture with nine dots on a purple background.

The tricky part?

People can't agree on what color the dots are!

Some say blue, others see purple or violet.

It's like a color-changing trick because the color may depend on which dot you look at and may change.

Some people are saying they only see one purple dot, but it keeps moving around.

The illusion is similar to the black and blue (or white and gold) dress that puzzled people.

It has people online arguing and debating what they see!