Yellow is the color of light with a wavelength between 565 nm and 590 nm. The human eye also perceives some mixtures of differently-colored lights, such as red added to green, to be the same color.

Yellow is one of the subtractive primary colors, and its complementary color is blue. However, because of the characteristics of paint pigments used in the past, painters traditionally regard its complement as purple.

Usage

• Yellow is a bright cheerful color, often associated with happiness and peace
• In the English language, yellow has traditionally been associated with jaundice and cowardice. In American slang, a coward is said to have a "yellow belly" or a yellow streak down their back, or is just plain "yellow."
• "yellow journalism," derived from its association with the Spanish-American War and "The Yellow Kid" comic strip, is a term which connotes sensationalistic reporting.
• Yellow or gold symbolized wealth, ability, or knowledge in English heraldry.
  Songs relating to yellow include:
• "Yellow" by Coldplay, from the album Parachutes
• "Yellow Submarine" by the Beatles, from the album Revolver (also the title of a film and album)
• "Mellow Yellow" by Donovan, from the album of the same name
• "Don't Eat the Yellow Snow" by Frank Zappa, from the album Apostrophe
• "Truck Drivin' Neighbours Downstairs (Yellow Sweat)" by Beck, from the album Mellow Gold