united kingdom - If the Union Jack joins the flag of England and Scotland, why does it have a different shade of blue than the Scottish flag? - History Stack Exchange

This chart (public domain from Wikimedia Commons) illustrates the question. Is there an explanation for why the Union Jack have a darker shade of blue than the original Scottish flag that it's base

The Story Of The Union Jack: The National Flag Of The United Kingdom - WorldAtlas

IMG Library IMG Connect Ltd - International Medical Recruitment Specialists

Flag of Scotland - Simple English Wikipedia, the free encyclopedia

What do the colors red, white and blue stand for on the 'Union Jack' flag? - Quora

If the Union Jack joins the flag of England and Scotland, why does it have a different shade of blue than the Scottish flag? - Quora

If all the UK flags combine together to form the Union Jack, how come the Scottish flag is a lighter shade of blue? - Quora

What Happens to the Union Jack Flag If Scotland Leaves the United Kingdom? - The Atlantic

If the Union Jack joins the flag of England and Scotland, why does it have a different shade of blue than the Scottish flag? - Quora

What Happens to the Union Jack Flag If Scotland Leaves the United Kingdom?

British Flag Union Jack Flies Over Country as U.K., Scotland, and Ireland Fray - Bloomberg

Union Jack - Wikipedia