Yellow

Yellow is the most visible and luminous of all the colours as the human eye processes it first.... It’s happiness, sunshine, happiness, and warmth, optimism, enlightenment, creativity, sunshine, spring, sunflowers, daffodils, egg yolks, lemons, canaries, bees, Sponge Bob, Tour de France winner’s jersey, happy faces, post its, and signs that alert us to danger or caution and physical illness -jaundice, malaria, cowardice, betrayal, egoism, madness, traffic lights and signs indicating caution.