The flag of Paraguay has an aspect ratio of 11:20. It consists of three equal horizontal stripes, with the top stripe being red (#D52B1E), the middle stripe white (#FFFFFF), and the bottom stripe blue (#3F729B). In the center of the white stripe is the national emblem, which is a circle with a diameter of 50% of the width of the white stripe.

The flag's geometric properties include:

1. Three horizontal stripes, each occupying one-third of the flag's height.
2. A circular emblem located at the center of the white stripe, with a diameter equal to half the width of the white stripe.

Exact measurements depend on the size of the flag being produced, but the proportions remain consistent.