What are the colours of Northern Ireland flag and what do they present?

- Red: Represents the cross of Saint Patrick, patron of Ireland.

- White: Represents the cross of Saint Andrew, patron of Scotland.

- Blue: Represents the sky and the surrounding seas as well as the cross of Saint George, the patron of England.

- The diagonal red crosses are known as saltire, representing Saint Andrew, the patron saint of Scotland, while the white diagonal cross represents Saint Patrick, the patron saint of Ireland.