Blue is the colour between violet and green on the optical spectrum of visible light. Human eyes perceive blue when observing light with a wavelength between 450 and 495 nanometres.
The United Kingdom is a Sovereign island country. It consists of 4 constituent countries, England, Northern Ireland, Scotland and Wales. Great Britain is the name of the island which consists of England, Scotland and Wales.The full name is the United Kingdom of Great Britain and Northern Ireland. The UK is part of the continent of Europe.he United Kingdom is a Sovereign island country. It consists of 4 constituent countries, England, Northern Ireland, Scotland and Wales. Great Britain is the name of the island which consists of England, Scotland and Wales.
The official title of the UK is the United Kingdom of Great Britain and Northern Ireland.The UK is made up of: 1  Great Britain (the formerly separate realms of England and Scotland, and the principality of Wales.2  Northern Ireland (also known as Ulster). 3  Numerous smaller islands including the Isle of Wight, Anglesey, and the Scilly, Orkney, Shetland, and Hebridean archipelagos.he official title of the UK is the United Kingdom of Great Britain and Northern Ireland. The UK is made up of: 1  Great Britain (the formerly separate realms of England and Scotland, and the principality of Wales. ). 2  Northern Ireland (also known as Ulster).