The flag of Comoros consists of four horizontal stripes of equal width, from top to bottom: yellow, white, red, and blue. In the upper left corner (hoist side) there is a green triangle with a white crescent moon and four white stars inside it. The aspect ratio of the flag is 2:3.

Color codes:

• Yellow: Pantone 116 C; RGB (255, 204, 0); CMYK (0, 20, 100, 0)
• White: Not applicable; RGB (255, 255, 255); CMYK (0, 0, 0, 0)
• Red: Pantone 186 C; RGB (206, 17, 38); CMYK (0, 100, 81, 12)
• Blue: Pantone 286 C; RGB (0, 51, 160); CMYK (100, 86, 7, 12)
• Green: Pantone 356 C; RGB (0, 122, 61); CMYK (92, 15, 100, 34)

Geometric properties and measurements:

• The flag has an aspect ratio of 2:3, which means that its width is two units for every three units of height.
• The height of the flag is therefore 1.5 times its width.
• Each of the four horizontal stripes is one-quarter of the width of the flag.
• The green triangle in the upper left corner takes up half the width of the flag and extends down to the midpoint of the white stripe.
• The white crescent moon and four stars within the green triangle have a radius of one-quarter of the height of the flag.

Other relevant information:

• The flag was adopted on January 7, 2002.
• The yellow color represents the country's sunshine and prosperity, while the white symbolizes peace. The red signifies the struggle for independence, and the blue represents the sea surrounding the islands.
• The crescent moon and stars on the green triangle are Islamic symbols, reflecting the dominant religion of the country.