Languages tend to divide the “warm” part of the color spectrum into more color words, such as orange, yellow, and red, compared to the “cooler” regions, which include blue and green, cognitive scientists have found. This pattern, which they found across more than 100 languages, may reflect the fact that most objects that stand out in a scene are warm-colored, while cooler colors such as green and blue tend to be found in backgrounds, the researchers say.