Crimson, vermillion, scarlet…
Red: one of three primary colors from which all other colors are mixed. One of the very first colors used to create art and has been a tool for drawing focus and communicating narratives throughout art history.  
Red is a highly evocative color: associated with power, dominance, passion, love, even anger and seduction. In various cultures, red has been associated with political and social movements, both historically and today.