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

Following on from The Dress, there
Following on from The Dress, there's a new colour spectrum illusion frustrating the nation, proving again that our perceptions of colour can be very different from each other.

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

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Optical illusion pictures: All the best mind-bending images from around the world

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