Blue flags
Sky, sea, freedom and vigilance. Dominates Pacific and Central American flags.
83 flags with blue
Andorra
Antigua and Barbuda
Argentina
Armenia
Australia
Bahamas
Barbados
Belize
Bosnia and Herzegovina
Brazil
Cabo Verde
Cambodia
Central African Republic
Chad
Chile
Colombia
Comoros
Costa Rica
Croatia
Cuba
Czechia
Dominican Republic
Ecuador
El Salvador
Equatorial Guinea
Eritrea
Estonia
Eswatini
Ethiopia
Fiji
Finland
France
Gabon
Gambia
Greece
Haiti
Honduras
Iceland
Israel
Kiribati
Laos
Lesotho
Liberia
Liechtenstein
Malaysia
Marshall Islands
Mauritius
Moldova
Mongolia
Namibia
Nauru
Nepal
Netherlands
New Zealand
Nicaragua
North Korea
Norway
Panama
Paraguay
Philippines
Portugal
Romania
Russia
Saint Vincent and the Grenadines
Samoa
Serbia
Seychelles
Sierra Leone
Slovakia
Slovenia
Solomon Islands
South Africa
South Korea
South Sudan
Sweden
Taiwan
Tanzania
Thailand
Ukraine
United Kingdom
United States
Uruguay
Venezuela