Want to feel more upbeat? Bring in the colors of sunshine and spring fields. In a study from the Vrije Universiteit in Amsterdam, adults reported feeling happier around these two colors. Blue, meanwhile, is a very soothing hue—it’s the color of the sky and the sea—and we can all use soothing touches in our hectic lives. In another study, people who were faced with difficult tasks felt less anxious after they saw something blue.