Circle of concealers balances all imperfections! Purple and yellow are opposites on the color wheel, so use yellow to cancel out any unwanted purple spots, such as bruises or under-eye circles. Any overly yellow spots Attack them with purple. Green and red are opposites, too. So use green on anything red: zits, flushes, blemishes, you name it! White brightens any color, so whatever part of your face you want to highlight, this is it!