The flag of Mauritania consists of a green field with a gold crescent and star in the center. The color codes for the flag are:

• Green: Pantone 356 C, HEX #007A3D
• Gold: Pantone 116 C, HEX #FFC72C

The aspect ratio of the flag is 2:3, meaning its width is two units while its height is three units. The geometric properties and measurements include:

1. The gold crescent and star are centered on the flag.
2. The distance between the top edge of the flag and the upper point of the crescent is 1/6 of the flag's height.
3. The distance between the bottom edge of the flag and the lower point of the crescent is also 1/6 of the flag's height.
4. The diameter of the circle that forms the outer edge of the crescent is equal to 1/2 of the flag's height.
5. The diameter of the circle that forms the inner edge of the crescent is equal to 1/3 of the flag's height.
6. The five-pointed star is inscribed within an invisible circle with a diameter equal to 1/6 of the flag's height.

These measurements ensure the proper proportions and placement of the elements on the flag.