National colours of the United Kingdom

The UK's constituent countries are normally identified respectively with white (England)[citation needed], blue (Scotland), red (Wales), green (in respect of Ireland in general), and occasionally black or gold (for the culturally distinctive English county of Cornwall).

Historically, the British Armed Forces fought in red, a traditional colour that remains in use in formal and ceremonial uniforms.

[1] The British and Irish Lions play in Red shirts, white shorts and blue socks with green trim.

Red, white and blue are also the colours of the London Underground, the rapid transit system of the United Kingdom's capital.

In 1867, an Order in Council defined that "the Red Ensign and Union Jack with a White Border continuing as at present the national colours for all British Ships.