Talk:Blue-black hair

I am the author of half of the French page as well as of the English one. On the French page, I give the sources, which is Proz.com

One minute ago, I just learnt that blue-black is synonymous with raven black or jet black

Raven hair, jet black, blue black all mean the same thing: very black. But if the black thing in question is not hair, then raven is not used.

One may consider mergin blue-black hair with black, but:

that would be quite a vague article
there is an attempt to have hair colours articles. Merging with black would lose this feature (also see this French template).
synchronization with French (which has its own blue-black article would be lost