There are at least two answers to this question.
The first is considered the "popular" and current interpretation:
blue - the sky of Brazil green - the forests of Brazil
yellow - gold and mineral resources white - peace
The second answer is that the green and yellow represent the colors of the House of Braganza (Portugal) and House of Lorena/Habsburg (Austria), respectively, from the coat of arms of the families of Brazil's first royal family (D. Pedro I and Leopoldina); the blue represents the sky as seen from Rio de Janeiro in the morning of Nov 15, 1889; and the white is just the background on which to inscribe the words "Ordem e Progresso" (Order and Progress)
The Brazilian flag is blue, green, and yellow with white stars.
http://www.answers.com/brazil%20flag is a flag.
Behind The NL Flag In Diamonds Run.
The white on the united states flag stands for purity.
what does white stands for in India
The white means peace and honesty.
The current flag of Brazil was introduced in the late 19th century as a replacement of the older version. The Brazilian flag contains a blue globe with white stars. Running through the globe is a white band representing the equator. 27 small stars represent the nation's federated regions or units. The colors of blue, white, green and yellow make it a beautiful flag.
Purity
Purity and innocence
The El Salvadorian flag is Blue and White .
White stands for peace and honesty
The white on the U.S. flag stands for innocence and purity.