A new super-white color of paint is so bright you might just need shades. Developed by scientists at Indiana’s Purdue University, the new whitest white acrylic paint reflects 95.5 percent of sunlight.

Xiulin Ruan, a Purdue University professor of mechanical engineering, holds up his lab’s sample of the whitest paint on record. Purdue University/Jared Pike A new coat of paint is an easy way to ...