What do Indians wearing white dresses represent

In Indian religious culture, white is considered the purest and is suitable to be worn during ceremonies and mourning

In Indian religious culture, the color of the sari has different representations:

White is considered the purest and is suitable to be worn during ceremonies and mourning; red stands for courage, and a bride wearing a red sari represents the creation of a bright future, red is also considered to be the color associated with emotions, sex and fertility; and the yellow sari is considered to be the color of religion, the new mother will wear a yellow sari seven days after the birth of her child, and the bride and groom will hang a yellow sari in the new room on the first day of the wedding to pray for happiness.