The flag of Mauritania consists of a green field with a gold crescent and star centered in the middle. The green color represents Islam and the gold symbols represent a bright future. The aspect ratio is 2:3, and the crescent and star are both vertically-oriented. The crescent has its opening to the left. The geometric properties of the flag are rectangular and symmetrical. The precise measurements of the flag vary depending on its size but the crescent and star are always centered within the flag's field. The exact color codes for the green and gold colors used in the flag are not standardized, but are generally considered to be dark green and metallic or golden yellow respectively.