Maa Durga is Maha Gauri in her eighth manifestation worshipped during Navaratri. She is considered to be saumya or calm in this manifestation. Mother Gauri is Parvati in her aspect as the one who prayed for Lord Shiva as a husband. Her austerities turned her skin dark, which was then bathed by Lord Shiva Himself. Maha Gauri is the same color as Lord Shiva - white as camphor.
May Mother Gauri whose form is pleasing to Lord Shiva, our father, bless us with the service of her lotus feet!
