Putting on certain colors on daily of Navratri is a common tradition, as Each and every colour represents a special high-quality on the Goddess. मां ब्रह्मचारिणी (दूसरा दिन) द्वितीया तिथि As for the sixth day, people today like putting on crimson because it symbolises power and dedication to struggle boundaries https://www.youtube.com/watch?v=QIX0JZlLsgE