What color is this?

What is your gender?
Are you colorblind?

What's going on here?

We're doing science!

What are colors really called? Do boys and girls really call colors different names? What colors to we consider "red" or "green" or "blue"? Is "toothpaste" a color?

When you use this website, you're helping us gather data to answer these questions, plus whatever other color questions anyone can come up with. The test goes on as long as you want.

If you'd like to see the raw data, click here. If you have suggestions for me, email me at [email protected].