The flag of Brazil has a green field with a large yellow diamond in the center, inside of which is a blue circle containing 27 small white, five-pointed stars arranged in the pattern of the night sky as it appeared over Rio de Janeiro on November 15, 1889. In the center of the blue circle is a white band with the national motto "Ordem e Progresso" (Order and Progress) inscribed in green letters.

Color codes:

• Green: RGB (0, 155, 58); Hex #009B3A
• Yellow: RGB (254, 223, 0); Hex #FEDE00
• Blue: RGB (0, 39, 118); Hex #002778
• White: RGB (255, 255, 255); Hex #FFFFFF

Aspect ratio: 7:10

Geometric properties and measurements:

• The green field takes up the entire background.
• The yellow diamond's vertices touch the midpoint of each side of the rectangle.
• The blue circle's diameter is 70% the height of the yellow diamond.
• The 27 stars form a constellation representing the Brazilian sky on November 15, 1889, at 8:30 am; they are positioned according to their right ascension and declination coordinates.

Other relevant information:

• The flag was adopted on November 19, 1889.
• The white band containing the national motto spans the blue circle horizontally with its width equal to 10% of the flag's height.
• The 27 stars represent the 26 states of Brazil and the Federal District.