Great optical illusion. Don't trust your eyes (3 pics)
Take a look at this picture.
What colors do you see? Purple, green, blue. Wait! Blue?
Do you really see blue color? Your eyes deceive you.
What you think is blue is actually green.
You can check this through Photoshop, if you have one.
If you don't, I can help you.
I zoomed both of those lines - blue and green. And they have definitely the same color.