Hi Juan,
and welcome to our forum!
Very interesting colour!
Or is the photo just cheating us and it's like Tungsten Silvers?
Seems to be a very dark "greenish dark brown silver" ...
(sorry, but I have to deal with colours in my job and always think how this grey might be composed with CMYK or RGB colours ...)
We could already admire Hambert's red Argentina up!.
He posted many photos which show differences to our "old world up!s" ...
Have a lot of fun with your beauty!