What colors glow under black light?

Orange glows under black ultraviolet light. Neons glow the most due to extra fluorescent additives. Reds do not glow, or barely glow an orange color, even if fluorescents are added. read more

This woman is wearing make-up that glows under a black light. The colors would not show up under ordinary lighting conditions. Piotr Stryjewski / Getty Images Materials That Glow Under Black Light. There are a lot of everyday materials that fluoresce or glow when placed under a black light. A black light gives off highly energetic ultraviolet light. read more

Plastic often glows under black light. I love Photo and Apple. / Getty Images Many plastics glow under black light. Often, you can tell a plastic is likely to glow just by looking at it. For example, neon-colored acrylic may contain fluorescent molecules. Other types of plastic are less obvious. read more