Honestly, there's no yellow in this optical illusion

We love a good optical illusion at Creative Bloq, and some are so good they crop up again and again online, baffling people all over again. This is one such example, and it's now been given a name: 'illusory yellow.' It might look like one of the circles in the image contains yellow lines between the blue ones, but they're not really there. 

People still can't believe it, and over on X (pronounced 'Twitter'), a whole debate has started again. Some people have even dragged the image into Photoshop to check just what's going on (see our favourite optical illusions for more mind benders).

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Joe Foley

Joe is a regular freelance journalist and editor at Creative Bloq. He writes news, features and buying guides and keeps track of the best equipment and software for creatives, from video editing programs to monitors and accessories. A veteran news writer and photographer, he now works as a project manager at the London and Buenos Aires-based design, production and branding agency Hermana Creatives. There he manages a team of designers, photographers and video editors who specialise in producing visual content and design assets for the hospitality sector. He also dances Argentine tango.