One thing that Bullough suggests pedestrians and drivers do to stay safe under purple streetlights—or any lights, for that matter—is to remove sunglasses and blue-light-filtering glasses when ...

In Milwaukee, at least 300 streetlights installed in 2018 began taking on a purple hue in 2021. In Eau Claire, Wisconsin, some city streetlights took on a blueish-purple tint the same year, as did ...

Explaining purple and blue streetlights in Charlotte Purple and blue hues are due to a manufacturer error, Keith Richardson, a senior communications manager at Duke Energy, told The News & Observer .