It's no coincidence. According to color psychology, warm reds and yellows subconsciously stimulate the appetite and trigger excitement and positivity.
Fast food places use these colors on everything from logos to trays to décor to entice customers to happily gulp down food without hanging out too long.
Cool colors, on the other hand, tend to suppress the appetite and slow everything down. The color of food packaging also affects how much people eat. White plates, boxes, and wrappings are said to encourage mindless overeating, even when a person is already full.
