| Flag Type: | National Flag |
|---|---|
| Flag Date: | 1st January 1801 |
| Flag Designer: | College of Arms |
| Adoption Route: | Act of Parliament |
| UK Design Code: | UNKG0001 |
| Aspect Ratio: | 3:5 or 1:2 |
| Pantone® Colours: | Blue 280, White, Red 186 |
| Certification: | King George III |
| Notes: | The United Kingdom Flag is the national flag of the United Kingdom of Great Britain and Northern Ireland, formerly the United Kingdom of Great Britain and Ireland, created by the Act of Union (1801). The flag is 3:5 on land and 1:2 at sea. The thicker white diagonal should fly uppermost next to the flagpole.
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