Also called fluorescent colors and neon colors, day-glo colors are especially bright, clean materials which can be much brighter than conventional colors. They were first developed in the 1930s, finding their way into magic shows, stage shows, and movie promotion posters. They contain certain dyes and resins that produce colors far brighter than traditional pigments, and that had the unique effect of "glowing" under ultraviolet or black light. Day-glo colors are exceptionally bright under many different conditions, including indoor lighting, low light outdoors, and in limited visibility areas. Studies have shown that day-glo colors are noticed first. They grab the attention of the observer. Fluorescent colors are widely used to get attention, focus attention on an object, warn people of a potentially hazardous situation, get an object, person or situation noticed, etc. They are commonly used for traffic cones, detergent packaging, tennis balls, fishing lures, etc., and can be found in a wide range of media, including oil and acrylic paints, inks, dyes, markers, crayons, etc.Example: Peter Halley (American, 1953-), A Perfect World, 1993, acrylic, day-glo acrylic, and Roll-a-Tex on canvas, 90 x 147-3/16 inches. See Neo-Geo.Related resources: DayGlo Corporation, manufacturer of fluorescent inks, paints, etc. Radiant Color Co., manufacturer of fluorescent inks, paints, etc. Also see glitter, graphic design, ink, iridescence, light, luminous paint, opalescent, paint, signage, and ultraviolet.