Couleur bleu nuit

Mon ornement de Noël préféré était une boule de verre de belle couleur bleu nuit // My favourite christmas ornament used to be a glass bauble in beautiful midnight blue color

It is true, there was such a bauble. Originally it had small white stars its shiny surface, but they disappeared gradually.

While looking up the name of this shade of blue I found that what is "midnight blue" in English is simply "Bleu nuit" in French, i.e. not "midnight", just "night". Not sure which one I like better.