Color psychology is the study of how colors influence human behavior and decision making. It can be beneficial to understand how your audience reacts to your social media graphics and what message they perceive from them. For instance, red can increase heart rate, blood pressure, and appetite while also stimulating action, urgency, and excitement. It can be used to create a sense of importance, urgency, or alertness or to highlight a call to action, a sale, or a promotion. Blue can lower blood pressure, heart rate, and stress while inducing calmness, relaxation, and trust. It can be used to create a sense of professionalism, credibility, or security or to appeal to a corporate, conservative, or male audience. Yellow can boost mood, energy, and attention while triggering curiosity, optimism, and creativity. It can be used to create a sense of happiness, positivity, or innovation or to attract attention, stimulate interest, or encourage communication.