Year Adopted: 1952.

US Territory. The flag was originally created in 1895 during a time of advocacy for Puerto Rican and Cuban independence from Spain. Note the similarity with the flag of Cuba.

The flag of Puerto Rico has five equal horizontal bands of red (top and bottom) alternating with white. A blue isosceles triangle based on the hoist side bears a large, white, five-pointed star in the center.  The white star symbolizes Puerto Rico; the three sides of the triangle signify the executive, legislative and judicial parts of the government. Blue stands for the sky and the coastal waters. Red symbolizes the blood shed by warriors, while white represents liberty, victory, and peace. (ref: CIA World Factbook, Jan. 2014)

Puerto Rico flag (Bandera de Puerto Rico) colors: The government of Puerto Rico specifies the flag colors to be used but, does not specify official tones or shades. It is not uncommon to see the flag of Puerto Rico with different shades of blue displayed on the island. USA made flags are typically produced using the blue in the USA flag (Blue PMS 2768). Flags can be made to order with a lighter tone "light blue" "French Blue" (PMS 285), or "sky blue" Royal Blue PMS 286.