Donning particular colors on every single day of Navratri is a typical tradition, as Every colour represents a different high quality from the Goddess. महानवमी, (नौवां दिन) शरद नवरात्र व्रत पारण The 9 evenings of Navratri are claimed to generally be important as there are subtle energies in the creation https://www.youtube.com/watch?v=QIX0JZlLsgE