The British flag is rectangular, with an aspect ratio of 2: 1, and consists of a dark blue background, red and white. The red cross with a white border in the national flag represents St George, the patron saint of England, St Andrew, the patron saint of Scotland and St Patrick, the patron saint of Ireland.
The flag was made in 180 1, and it was made up of ten red flags on a white background in England, a white cross flag on a blue background in Scotland and a red cross flag on a white background in Ireland.
Extended data
The national emblem of Britain:
The center of the British national emblem is a coat of arms, with three golden lions on a red background in the upper left corner and lower right corner of the shield, symbolizing England; There is a red lion standing on the golden bottom in the upper right corner, symbolizing Scotland; In the lower left corner is a golden harp with a blue background, symbolizing Northern Ireland. On both sides of the coat of arms are a lion wearing a crown representing England and a unicorn representing Scotland.
Around the coat of arms is a guardian medal with a motto written in French, which means "it is shameful to have evil thoughts"; The hanging belt at the lower end says "God has God, I have rights". At the top of the coat of arms is a gold and silver helmet inlaid with jewels, an imperial crown and a crowned lion.
Baidu encyclopedia-British flag
Baidu Encyclopedia-UK