Blue is such an important color. It conveys a multitude of emotions, meanings, and associations, and each shade can drastically alter its effect. Most commonly, blue is used to express feelings of calmness and serenity, it signifies trust and stability, and it is frequently used to show expansiveness in art. However, when used with other colors, blue can communicate other feelings and emotions, such as sadness or disdain. Blue can be anything you want it to be, it just takes some creative thinking!