Bleu de France (colour) - Wikipedia
en.wikipedia.org › wiki › Bleu_de_France_(colour)Bleu de France (Blue of France) is a colour traditionally used to represent France. Blue has been used in the heraldry of the French monarchy since at least the 12th century, with the golden fleurs-de-lis of the kings always set on a blue (heraldic "azure") background. A brighter version, based on the blue of the French Tricolour, is used in modern times, particularly in a sporting context.
Bleu de France (colour) - Wikipedia
https://en.wikipedia.org/wiki/Bleu_de_France_(colour)Bleu de France (Blue of France) is a colour traditionally used to represent France. Blue has been used in the heraldry of the French monarchy since at least the 12th century, with the golden fleurs-de-lis of the kings always set on a blue (heraldic "azure") background. A brighter version, based on the blue of the French Tricolour, is used in modern times, particularly in a sporting context. French national teams in all sports will normally use blue as their main colour.