I saw this project on Behance awhile ago. Designed by Vash, it looks as though he has changed his privacy settings or removed his account, so I can’t link to the original project site, unfortunately. The identity system it’s a part of actually includes a much broader palette, but I love this excerpt. I was able to find this FFFound link that shows more — it really is a beautiful system, I wish I could provide more information.
Update: I just got an email about this project being published (I guess for the second time?) on Behance. The project is actually entitled Vash, and the designer is Andrey Yazev. Check out the rest of this project right here.