The flag of Macau has a dark green field with a lotus flower above an arc of five gold, five-pointed stars on the center-left. The lotus flower is white, and the stars are arranged in a circle. The aspect ratio of the flag is 2:3. The geometric properties of the flag include a rectangular shape and symmetrical placement of its elements. The color codes of the flag are:

• Dark green: Pantone 342C / RGB 0, 122, 61 / CMYK 100, 0, 75, 52
• Gold: Pantone 871C / RGB 255, 204, 0 / CMYK 0, 20, 100, 0
• White: Pantone White / RGB 255, 255, 255 / CMYK 0, 0, 0, 0

The lotus flower measures about 1/6 of the flag's height and is positioned slightly to the left side of the flag's center. The stars have a radius of about 1/10 of the flag's height and are arranged in a circle with a diameter of 3/10 of the flag's height.