The flag of Colombia consists of three horizontal stripes of equal width - yellow, blue, and red arranged from top to bottom. The yellow stripe occupies the top half of the flag while the blue and red stripes take up the bottom half. The aspect ratio is 2:3.

The geometric properties of the flag are rectangular with a ratio of 2:3 between the width and the length.

There are no official color codes for the flag, but the colors used in the flag have been described as follows: yellow (Pantone 116 C), blue (Pantone 286 C) and red (Pantone 186 C).

The measurements of the flag may vary depending on its intended use, but it should maintain the same proportion and colors.