Iran Press/ Europe: Emmanuel Macron's administration quietly introduced the navy blue over a year ago, and until now there was no explanation given.
A member of staff from Mr. Macron's administration told French news sites Europe 1 and CNews that there were a couple of reasons for the change.
"There are aesthetic reasons, this blue is more elegant," they told the websites.
But they also said the "very political" decision was made "to revive a symbol of the French Revolution".
France has used both lighter and darker hues of blue on its flag for decades.
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