One of the most controversial aspects of marketing is the psychology of color. While behavioral psychologists have been studying the affects of colors on people’s emotions, there is little scientific consensus about how colors influence people. But, that doesn’t mean that the colors of your brand and website don’t matter. If you examine the marketing campaigns of some of the world’s biggest companies you see that color matters a great deal. Here are the essentials every marketing director needs to know about using color on the web.