The late princess favored butter yellow in both her formal and off-duty lives, wearing everything from puff-sleeved evening ...

For example, cool shades like pastel blue and dove gray make walls "recede" or appear further away, while the reflective properties of pale yellow maximize ... that the color swatches in stores ...

Butter yellow is a very particular shade—not too saturated but also not so washed out that it becomes pastel. It’s commanding ...

But make no mistake: Although pastel colors aren’t a brand new trend ... green at Chloé to ultra-delicate takes on butter yellow at Chanel, there’s no shortage of contemporary reimaginings ...