Tiktok user Otelia Carmen, who uses the handle @oteliacarmen, shared a video of her new hat on the social media site.And immediately went viral thanks to a baffling optical illusion that meant the hat appeared to change colour.Speaking in the video, Otelia said: “So, I bought this green hat at the store today and I brought it home and when I took it out, I was like: ‘Why is this brown?’“Then realised: metamerism.
This is why lighting is so important in interior design.”Metamerism is when a colour change is seen in a coloured item because of different spectral emissions from different light sources.Each light source has its own “colour”, so when it’s projected onto a coloured surface, it changes the colour of that surface.In this instance,.
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