The flag of Portugal consists of a rectangular field divided vertically into green on the hoist side and red on the fly side, with the national coat of arms centered over the boundary of the two colors. The aspect ratio of the flag is 2:3. The geometric properties are a rectangle with a width-to-length ratio of 2:3, and the coat of arms occupies approximately two-fifths of the total height. The color codes for the flag are Pantone 348C for green and Pantone 186C for red. The proportions and measurements of the coat of arms are not specified in the law that regulates the flag.