Blue and Yellow Flags: Countries, EU and US States

October 24, 2026

A yellow disk on pale blue points to Palau. The blue-and-gold flag with a torch and nineteen stars belongs to Indiana, a US state rather than a country.

Country flags

The country examples below include Bosnia and Herzegovina, whose white stars add a third color.

Ukraine

Ukraine flag with blue above yellow

Two equal horizontal bands, blue above yellow, identify Ukraine. There is no cross, disk or emblem on the national flag.

Sweden

Sweden flag with a yellow Nordic cross on blue

Sweden replaces the stripes with a yellow Nordic cross on blue. The upright part of the cross sits toward the flagpole rather than in the center.

Swedish Flag Day falls on 6 June, which is also Sweden’s National Day.

Palau

Palau flag with an off-center yellow disk on light blue

A single yellow disk sits slightly toward the flagpole on a light-blue field. The disk represents the full moon, according to the Palauan government’s flag description.

Kazakhstan

Here the round symbol is a sun, with an eagle below it. A vertical ornamental band runs beside the flagpole. The official description specifies gold for the sun, eagle and ornament against a blue field.

Bosnia and Herzegovina

Bosnia and Herzegovina flag with yellow triangle and diagonal white stars on blue

The yellow triangle and diagonal line of white stars are the distinguishing features. The star pattern extends beyond the top and bottom edges, leaving a partial star at each end.

The diagonal contrasts with the circle on the European flag below.

The European flag

European flag with twelve gold stars in a circle on blue

The European Union is not a country. Its flag belongs here as a separate emblem: twelve gold stars form a circle on blue.

The number stays at twelve regardless of EU membership. The Council of Europe chose the design in 1955; European Communities leaders adopted it in 1985.

Blue and gold US state flags

Alaska

Alaska flag with the Big Dipper and North Star in gold on blue

Eight gold stars mark the Big Dipper and the North Star. This is a sky pattern rather than a count of states: seven stars form the Dipper, with the larger North Star apart from them.

Indiana

Indiana flag with a gold torch and nineteen stars on blue

Indiana adds a torch at the center. Its nineteen stars have a different purpose from Alaska’s:

  • Thirteen outer stars represent the original states.
  • Five inner stars represent the next states admitted.
  • The larger star above the torch represents Indiana, the nineteenth state.

Oregon

Oregon is worth checking on both sides. The front carries the state shield, thirty-three stars, the state name and 1859; the reverse shows a beaver. State law specifies gold designs on navy blue.

Quick identification

FlagTypeMain visual clue
UkraineCountryTwo horizontal bands
SwedenCountryNordic cross
PalauCountrySingle yellow moon disk
KazakhstanCountrySun, eagle and vertical ornament
Bosnia and HerzegovinaCountryTriangle and diagonal white stars
European flagEuropean emblemCircle of twelve gold stars
AlaskaUS stateBig Dipper and North Star
IndianaUS stateTorch and nineteen stars
OregonUS stateState shield; beaver on reverse
Blue and Yellow Flag collection graphic

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