From marketing to interior design, color psychology explores how hues influence mood and behavior. Red stimulates appetite (hence its use in fast-food logos), while blue promotes calm—ideal for bedrooms or hospitals. Cultural context matters: white symbolizes purity in Western weddings but mourning in parts of Asia. Personal experiences also shape responses—someone who associates yellow with a childhood sunflower field may feel joy, while another links it to caution. Designers use this knowledge intentionally: schools use warm tones to energize learning; spas favor greens and blues for tranquility. Understanding color psychology empowers us to curate environments that support our emotional needs—proving that sometimes, the right shade can change everything.