The flag of the Falkland Islands consists of a dark blue field with the Union Jack in the upper left corner and the Falkland Islands coat of arms centered on the right half of the flag. The coat of arms features a sheep, a ship, and a ram representing the island's economic activity, maritime history, and wildlife respectively.

The aspect ratio of the flag is 3:5, meaning it is three units wide for every five units long. The Union Jack in the upper left corner takes up one-third of the width and half of the height of the flag.

The color codes used in the flag are:

• Dark Blue: Pantone 280 C / RGB (0, 38, 84) / #002654
• Red: Pantone 186 C / RGB (213, 43, 30) / #D52B1E
• White: RGB (255, 255, 255) / #FFFFFF

The dimensions of the Falkland Islands flag depend on its intended use, but the recommended measurements for a standard size flag are approximately 1.8 meters wide by 3 meters long.

Geometrically, the flag can be described as a rectangle with a diagonal line separating the two halves of the design. The Union Jack in the upper left corner is also a rectangle, while the coat of arms on the right half of the flag is a shield shape.