History of the Costa Rica Flag: 1821, 1848 & Pacífica Fernández

After independence from Spain in 1821, Costa Rica passed through several political arrangements and used changing national and Central American symbols. Blue-and-white flag traditions associated with the United Provinces and later Federal Republic of Central America influenced the country before the present tricolour emerged.

The National Museum identifies José María Castro Madriz—Costa Rica’s last Head of State and first President—as the founder of the Republic and creator of the national flag and coat of arms in the 1848 transition.

In 1848 Costa Rica formally became a republic under President José María Castro Madriz. The new state adopted a more distinctive national flag with five horizontal bands and a broad red center stripe.

The redesigned flag moved beyond the simpler blue-and-white Central American pattern and created a visual identity associated with the new republic.

Pacífica Fernández Oreamuno, wife of President José María Castro Madriz, is traditionally credited with drawing the 1848 tricolour. Costa Rica’s Ministry of Foreign Affairs explicitly states that she was inspired by the French flag.

That French connection helps explain why red was introduced so prominently into a flag tradition that had previously been dominated by blue and white.

The basic five-band national flag has remained remarkably stable. Most later changes concerned the national coat of arms and therefore the official Pabellón Nacional rather than the plain national flag.

As the coat of arms evolved, details such as the number of stars and official artistic treatment changed, while the blue-white-red-white-blue stripe pattern remained the core national design.

Law 10178 now provides the modern legal framework. It defines the five stripes, their symbolism, Pantone references, 3:5 proportions and rules for respectful use. It also clearly separates the ordinary Bandera Nacional from the restricted Pabellón Nacional.