The flag of Lebanon consists of three horizontal stripes, the top and bottom stripe are red and have a height equal to one-third of the total height of the flag. The middle stripe is white and has a height equal to one-third of the total height of the flag. In the center of the white stripe is a green cedar tree with a width equal to one-third of the width of the flag. The aspect ratio of the flag is 2:3 (width to height). The official color codes for the flag are:

• Red: Pantone 186C
• White: No specific Pantone code, but it should be a pure white
• Green: Pantone 342C

The geometric properties and measurements of the flag are as follows:

• Total height: 3 units
• Total width: 2 units
• Height of each red stripe: 1 unit
• Height of white stripe: 1 unit
• Width of cedar tree: 2/9 units

Note: The flag's dimensions and colors are standardized by the Lebanese government and the above measurements and codes may vary slightly from other sources.