The flag of Serbia has the following properties:

1. Aspect ratio: 2:3, meaning it is 2 units in width and 3 units in height.

2. Colors: The flag features three horizontal stripes of equal size, with color codes as follows:

   • Top stripe: Red (Pantone 186 C, HEX #C6363C)
   • Middle stripe: Blue (Pantone 286 C, HEX #003D99)
   • Bottom stripe: White (HEX #FFFFFF)

3. Coat of arms: Positioned on the left side of the flag, within the blue stripe and slightly overlapping the red and white stripes.

   • Width: Approximately 0.5 times the width of the flag (1 unit)
   • Height: Approximately 1/3 the height of the flag (1 unit)

4. Geometric properties: There are no explicit geometric designs in the flag other than the tricolor layout and the positioning of the coat of arms.