The primary color of the flag of Spain is red, which features two horizontal red stripes at the top and bottom, with a yellow stripe in the middle that is twice the height of each red stripe. The flag also includes the Coat of Arms of Spain, towards the left side of the yellow stripe. This vibrant flag is a symbol of the country and its rich cultural heritage, often displayed during national holidays and events. The distinct colors represent courage and generosity, making it an important emblem of national identity.