The document discusses how color influences human psychology and emotions. It states that the colors used on a website can encourage visitors to engage with the site's goal or leave quickly. Visitors will be subconsciously influenced by the colors and visual elements used on a site. Different colors like red, blue, and yellow can make people feel excited, happy, bored, or calm. The right color selection depends on the intended audience. Color is an important communication tool and the effects of different colors should be considered.