Absolutely, igm. The national teams are refered to as “les bleus – allez les bleus !”, local state radio is “France bleu”, the colour of my old triathlon kit was “bleu de France”, the galoises blondes cigarettes handed out to troops in the ration came in a blue packet, French racing cars and the Renault Alpine rally cars were a patriotic blue, the French royals dressed up in bleu roi before they were approriately dealt with, the gendarmes are dressed in bleu-gendarme, the patrouille de france jets are mainly blue – as are the uniforms – why would a country that has the red arrows want blue passports ?
Edit: and my new Zoé is blue. 😉