[…] make simple everyday tasks a challenge — from traveling (say, differentiating the colors in a traffic light or reading a subway map) to eating (being able to tell if a banana you’re about to peel is ripe) to getting dressed (color-coordinating can be a nightmare [aarp.org]

That being said, here’s a few color combinations to avoid because they’re a potential nightmare to color blind users: Green & Red Green & Brown Blue & Purple Green & Blue Light Green & Yellow Blue & Grey Green & Grey Green & Black Side note: how do you [usabilla.com]

Their reactions range from excitement to tearful joy. Many feature folks crying after seeing the "real" color of leaves or a loved one's eyes for the first time (just check out the video below). [forbes.com]