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However, the mental processing involved in colour perception does leave room for interpretation and ambiguity, especially when the nature of the background illumination is unclear as is the case with the photo of the dress (another illusion that hacks the limitations of this aspect of our visual system is the checker shadow illusion)

Chiffon, jersey, and lace are popular choices that provide both elegance and comfort

Nevertheless, this might be too formal for your tastes for a black tie optional event

Here's that corrected photo: The truth Website Mashable has taken a practical approach and searched for other, less ambiguous photos of the dress