Whether this dress is white and gold or black and blue has sparked a huge debate on social media today.
The picture of the dress was first posed on Tumblr by Caitlin McNeill, a 21-year-old aspiring singer from Scotland, who noticed her friends saw different colours in the photograph.
Millions of people have since weighed into the debate and it’s raised an interesting point about how we perceive colour.
Specsavers’ clinical expert Dr Nigel Best says it’s all to do with how your brain perceives colour: ‘How an individual perceives colour is a physiological and psychological phenomenon which occurs when light strikes an object and gets reflected into our eye.
‘With this in mind, no object can be said to have a “fixed” colour.
Scientists know that objects viewed by different observers or under different illuminations can be perceived as being slightly different colours. Usually these differences are very subtle, in this instance, as a result of the colours themselves and the background lighting they are much more marked.’
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