The flag of Benin consists of two horizontal stripes: a top yellow stripe and a bottom red stripe, with a green vertical band on the left side. The width-to-length ratio of the flag is 2:3. The geometric properties and measurements of the flag are as follows:

• Width: 2 units
• Length: 3 units
• Top yellow stripe height: 1 unit
• Bottom red stripe height: 1 unit
• Green vertical band width: 1 unit

The specific color codes for the flag of Benin are:

• Yellow: Pantone 116 C; RGB: 255, 211, 0; HEX: #FFD300
• Red: Pantone 186 C; RGB: 206, 17, 38; HEX: #CE1126
• Green: Pantone 355 C; RGB: 0, 128, 0; HEX: #008000

The flag has no coat of arms or other significant symbols on it.