Where in the world?
The flag of Colombia has three horizontal stripes of yellow, blue, and red.

Colombia

Population: 50,882,884

Region: Americas

Subregion: South America

Capital: Bogotá

Top Level Domain: .co

Currencies: Colombian peso

Border countries

The flag of Brazil has a green field with a yellow diamond and a blue globe with stars in the center.

Brazil

Population: 212,559,409

Region: Americas

Capital: Brasília
The flag of Ecuador has three horizontal stripes of yellow, blue, and red with the national coat of arms in the center. The yellow stripe is twice the height of the blue and red stripes.

Ecuador

Population: 17,643,060

Region: Americas

Capital: Quito
The flag of Panama has four quarters of white, red, white, and blue with a blue star in the top left quarter and a red star in the bottom right quarter.

Panama

Population: 4,314,768

Region: Americas

Capital: Panama City
The flag of Peru has three vertical stripes of red, white, and red with a national coat of arms in the center of the white stripe.

Peru

Population: 32,971,846

Region: Americas

Capital: Lima
The flag of Venezuela has three horizontal stripes of yellow, blue, and red with eight white stars in a semicircle in the center of the blue stripe.

Venezuela (Bolivarian Republic of)

Population: 28,435,943

Region: Americas

Capital: Caracas