Blue can mean a lot of things. Most of the time, blue means intelligence, tranquility, and peace. Some also link it to confidence and loyalty. For now, I will focus on what wearing blue can mean for you and what impression it can give to the people around you. Blue is a soothing color. Because of this, researchers say it is the best color to wear for a job interview or even a date. With a blue jumpsuit, you will make yourself feel calmer and give a reassuring feeling to the ones who see you.