The Devil Wears Prada made a cerulean sweater a moment in fashion history. But its scientific history is much older, and more fascinating.

Color psychology studies human behavior, emotion and decision-making. Certain colors, like blue, may affect your personality.

Whether it’s the ultramarine of an Yves Klein masterpiece or the faded chambray of a shirt worn soft over decades, blue sets a certain tone. A moody navy can provide a dose of quiet luxury, while a ...

Every other Friday on Morning Edition, the Outside/In team answers a question from a listener about the natural world. For the past few weeks, we’ve been tackling queries on the theme of “blue.” What ...