Lighter colors actually help ice last longer in the sun.

Yes, cooler colors (lighter, more reflective) do improve ice retention in direct sunlight.

It’s basic physics. Dark colors absorb more light energy, which turns into heat. A dark cooler sitting in the sun will heat up faster than a white or light-colored one. The ice inside melts faster. That’s why you see white coolers at the beach.

A common mistake: people think “cooler color” means blue or green. But the real effect is about lightness vs darkness, not hue. A light blue cooler works better than a dark blue one. If you’re buying a cooler for hot sunny days, go with white or a very light color.

Shade beats any color, though. But white is your next best bet.