Most optical illusions are cleverly placed but believable enough that once you get an explanation, you believe it. This one was so impossible, I had to pull the image into Photoshop just to double-check.
In the image below, the “blue” stripes and the “green” stripes are the exact same color, RGB 0-255-150. The pink and orange lines are the key to the illusion. The orange brings out a more brisk green than how the strips by themselves appear, while the pink stripes make the light green appear to be baby blue.
If you don’t have a headache yet from the visual, pull it into Photoshop

Clips from the upcoming documentary exploring the deep-seated biases and attitudes about skin color---particularly dark skinned women, outside of and within the Black American culture.

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Directed by Bill Duke and D. Channsin Berry
Produced by Bill Duke for Duke Media
and D. Channsin Berry for Urban Winter Entertainment
Co-Produced by Bradinn French
Line Produced by Cheryl L. Bedford
Edited by Bradinn French

source: http://www.bcreative.al/zombie-i...