Longman Dictionary English From Longman Dictionary of Contemporary EnglishRelated topics: Colourspowder blueˌpowder ˈblue noun [uncountable] CCa pale blue colour —powder blue [adj]Examples from the Corpuspowder blue• As for my powder blue, double-knit polyester bridesmaid dress and floppy hat, I left them behind this time. ldoceonline.com