Blue is the opposite of red in terms of its impact on appetite. What about mixing the two colors together to create purple? In theory, purple could incite a combination of calmness and passion. While this might be true, the color is the least used in brand marketing and logos out of all the colors. It is more often used with practical or informational based services, because of its historical connection with royalty and wisdom. Very few food-related companies used purple, like Wonka and Cadbury, which sell chocolate products.
