National colors are specific colors that represent a country and are often used in its flags, emblems, and official symbols. These colors can reflect the nation's history, culture, and values. For example, the colors of the United States flag—red, white, and blue—symbolize valor, purity, and justice, respectively. Countries may also have national colors that are used in sports, ceremonies, and other national events. These colors help foster a sense of unity and pride among citizens. For instance, the Brazilian national soccer team is known for its bright yellow and green uniforms, which represent the country's vibrant culture and natural beauty.