For the record, the dress is definitely black and blue. But it appears white and gold to some people due to a phenomenon called color constancy and the way that our brains interpret colors.

These shades are designers’ blue go-tos. Nothing suits a kitchen quite like a soft sky blue, subtle gray-toned slate, or ...

You might have noticed, maybe while waiting in the passport-control queue, that these travel documents come in only a few colours. In general, passports are only red, green, blue, or black ...