The flag of Uruguay consists of nine horizontal stripes alternating between white and blue, with a white canton in the upper hoist-side corner featuring a golden sun with a face. The aspect ratio of the flag is 3:2.

Colors:

1. White: #FFFFFF
2. Blue: #0038A8
3. Golden Sun: #FCD116

Geometric properties and measurements:

1. The width of each stripe is 1/9th of the flag's height.
2. The canton occupies the upper left quarter of the flag, extending to the 6th stripe.
3. The diameter of the sun is 11/15th of the canton's height.
4. The sun has 16 rays, alternating between straight and wavy, with the straight rays being slightly longer than the wavy ones.

These are the main features of the flag of Uruguay without discussing its symbolism.