Freddy Kruegers sweater is red and green striped. Director Wes Craven chose this color combination because he read in a scientific article that red and green are the two most difficult colors for the human eye to perceive correctly. The particular shades of red and green used on Freddys sweater are considered the most difficult to view simultaneously. In certain lights, some fans have mistaken Freddys stripes for red and black, but according to Craven himself, its red and green.