Countries with Blue & White Flags 2026

This is the complete set of sovereign UN-member states whose flags use blue and white as their defining colours. Five countries qualify with a completely pure blue-and-white design (Somalia, Finland, Greece, Israel, Honduras). Seven more are included with notes where gold or multicolour coats of arms appear on state variants. Four Central American nations share a common blue/white/blue heritage from the Federal Republic of Central America (1823–1841).

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12 countries(complete set — no sovereign nation was omitted)

Country	Since	Design	Details
Somalia	1954	Light blue field, white star	A plain light blue field bearing a large white five-pointed star at its centre. One of the world's most minimalist national flags, with no stripes, no canton, no emblem — only two colours. The light blue was directly inspired by the flag of the United Nations, which played a central role in Somalia's transition to independence. The five points of the Star of Unity represent the five regions historically inhabited by Somali peoples: the former British Somaliland, Italian Somalia, the Ogaden (Ethiopia), the Northern Frontier District (Kenya), and Djibouti. The design has remained unchanged since it was first hoisted in 1954.
Finland	1918	White field, blue Nordic cross	A white field bearing a blue Nordic cross whose vertical arm is shifted toward the hoist — the standard Scandinavian cross template originated by Denmark's Dannebrog. Known in Finnish as the siniristilippu ('blue cross flag'). Adopted on 29 May 1918, shortly after Finland declared independence from Russia. The white represents the snow that blankets the country in winter; the blue evokes the thousands of lakes that define Finland's landscape — the country has more lakes per capita than almost any other nation on Earth. The cross design underlines Finland's cultural and historical ties to the other Nordic countries.
Greece	1978	Nine blue/white stripes, blue canton with white cross	Nine equal horizontal stripes alternating blue (five) and white (four), with a blue square canton in the upper-hoist corner bearing a white Greek cross. The nine stripes represent the nine syllables of the Greek patriotic motto Ελευθερία ή Θάνατος ('Freedom or Death'). The cross symbolises Greek Orthodox Christianity, the established religion. The flag's current form dates to 1978; the striped design itself has been in use since 1822 during the Greek War of Independence. Uniquely, Greece's coat of arms is also purely blue and white — a blue shield with a white cross — so even the state flag introduces no additional colour.
Israel	1948	White field, two blue stripes, blue Star of David	A white field flanked by two horizontal blue stripes near the top and bottom edges, with a blue Star of David (Magen David) centred between them. The design is modelled on the tallit — the Jewish prayer shawl — whose white field and blue stripes have been a symbol of Jewish identity for centuries. The Star of David has been a widely recognised Jewish and later Zionist symbol since the 19th century. Adopted upon Israel's declaration of independence in May 1948, this is one of the few national flags explicitly rooted in religious textile tradition rather than heraldry or revolutionary politics.
Micronesia	1978	Blue field, four white stars in diamond	A light blue field bearing four white five-pointed stars arranged in a diamond pattern at the centre. The blue represents the Pacific Ocean that surrounds and defines the archipelago. Each of the four stars represents one of the Federated States: Yap, Chuuk, Pohnpei, and Kosrae. The design was adopted on 30 November 1978 when the Federated States of Micronesia became self-governing. Earlier versions of the flag had more stars representing additional districts; the flag was updated to four stars as the federal structure was finalised. The blue shade echoes the United Nations flag — the UN administered the territory before independence.
Honduras	1866	Blue/white/blue triband, five blue stars	Three equal horizontal bands of blue (top), white (middle), and blue (bottom), with five blue five-pointed stars arranged in an X pattern in the white band. Because the stars are blue — not gold or white — the entire flag, including the state version, uses only two colours. The design derives from the flag of the Federal Republic of Central America (1823–1841). The five stars represent the five original Central American states: Guatemala, El Salvador, Honduras, Nicaragua, and Costa Rica — a symbol of hope for future reunification. Added to the flag by Legislative Decree No. 7 on 7 March 1866.
ArgentinaCivil flag is pure blue/white; state flag adds a gold Sun of May.	1818	Sky blue / white / sky blue triband	Three equal horizontal bands of sky blue (top), white (middle), and sky blue (bottom). The civil flag — the version most commonly seen — is a pure two-colour design with no emblem. The state flag adds a golden 'Sun of May' (Sol de Mayo) with a human face and 32 alternating straight and wavy rays at the centre of the white band, introducing gold as a third colour. The design was created by Manuel Belgrano and first raised on 27 February 1812 during the Argentine War of Independence. The sky blue (celeste) and white are said to represent the sky clearing above the Río de la Plata as Spanish forces retreated.
El SalvadorCivil flag is pure blue/white; the state 'Bandera Magna' adds a multicolour coat of arms.	1912	Blue / white / blue triband	Three equal horizontal bands of blue (top), white (middle), and blue (bottom). The civil version of the flag displays only the text 'DIOS UNIÓN LIBERTAD' on the white band; the state 'Bandera Magna' adds a complex coat of arms featuring volcanoes, a rainbow, a Phrygian cap, and laurel branches — introducing green, gold, and other colours. The blue-white-blue design directly descends from the flag of the Federal Republic of Central America. Reintroduced on 15 September 1912 after a period when El Salvador used a flag resembling the Stars and Stripes, it remains a standing symbol of Central American unity.
GuatemalaCivil flag is pure blue/white with vertical stripes; the state flag adds a multicolour coat of arms.	1871	Blue / white / blue vertical triband	Three equal vertical bands of blue (hoist), white (centre), and blue (fly) — uniquely, Guatemala uses vertical rather than horizontal stripes, the only former Central American federation state to do so. The state flag places the national coat of arms — featuring a resplendent quetzal bird, crossed rifles, a scroll, and laurel branches — at the centre of the white band, introducing green, gold, brown, and other colours. The vertical layout and the sky-blue shade distinguish it from the horizontal tribands of Honduras, El Salvador, and Nicaragua. The current design dates from 1871.
NicaraguaCivil flag is pure blue/white; the state flag's coat of arms includes purple (from the rainbow) and other colours.	1908	Blue / white / blue triband	Three equal horizontal bands of blue (top), white (middle), and blue (bottom). The state flag adds a coat of arms featuring five volcanoes, a rainbow, a Phrygian cap, and the inscription 'República de Nicaragua — América Central' inside an equilateral triangle. The rainbow in the coat of arms makes Nicaragua one of only two sovereign states whose flag includes the colour purple. The blue-white-blue design dates to the Federal Republic of Central America. The current flag has been in official use since 1908, with the coat of arms standardised in 1971.
San MarinoCivil flag is pure white/blue; the state flag adds a multicolour coat of arms with green, gold, and other colours.	1862	White / light blue horizontal bicolour	Two equal horizontal bands of white (top) and light blue (bottom). The civil flag is a perfectly pure two-colour design. The state flag adds the national coat of arms — a blue shield bearing three silver towers on green peaks, flanked by laurel and oak wreaths with gold fruits — introducing green, gold, brown, and grey. San Marino claims to be the world's oldest surviving republic, founded in 301 AD according to tradition, making its flag one of the most historically resonant in Europe. The colours represent the snow of Mount Titano (white) and the sky and liberty (light blue). The current design has been in use since 1862.
UruguayThe Sun of May in the canton is gold, introducing a third colour; nevertheless Uruguay is universally grouped with blue-and-white flags.	1830	Nine blue/white stripes, gold Sun of May	Nine equal horizontal stripes alternating white (five) and blue (four), with a white canton in the upper-hoist corner bearing a golden 'Sun of May' with 16 alternating straight and wavy rays. The Sun of May — also used by Argentina — honours the May Revolution of 1810 and the Incan sun god Inti. The nine stripes represent the nine original departments of Uruguay at the time of independence. Because the Sun of May is gold, Uruguay's flag always includes a third colour; the design is invariably included in the blue-and-white group given the overwhelming dominance of those two colours. Adopted in its current form on 11 July 1830.