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The blue, white and red horizontal design was created in 1848 by Pacífica Fernández, wife of then president José María Castro Madriz. Fernández was inspired by France's 1848 Revolution, and the creation of the French Second Republic.
The new design to the Costa Rican flag adopted the colors of the French tricolor. The blue color stands for the sky, opportunities, idealism and perseverance. The white color stands for peace, wisdom and happiness. The red color stands for the blood spilt by martyrs in defense of the country, as well as the warmth and generosity of the people. The stripes are in the ratio 1:1:2:1:1.
The flag of Costa Rica is similar to the flag of Thailand, which was adopted 11 years later. It also resembles the flag of North Korea which was adopted almost 42 years later in 1948.