The flag of Singapore has two horizontal stripes and a canton in the upper hoist-side corner. The aspect ratio is 2:3.

Colors:

1. Red (top stripe) - Pantone 032 C, HEX #ED2939
2. White (bottom stripe) - Pantone Safe, HEX #FFFFFF

Geometric properties and measurements:

1. The red stripe occupies the top half, while the white stripe occupies the bottom half.
2. The canton is a red square with sides equal to the height of the flag.
3. Within the canton, there are five white stars and a white crescent moon.

The five stars are arranged in a circle, with the crescent moon to their right. The stars have five points each and are of equal size. The distance between the center of each star and the center of the circle is equal.