* * Yes * *. After the death of the mother, the daughter can wear a light blue cotton-padded jacket during mourning. During mourning, you should usually wear plain clothes to express your condolences and respect. Light blue is an elegant color and meets the requirements of plain color, so it can be worn. However, the specific color of clothes may also be different due to different regions, cultures and families, so it is best to follow the traditional customs of local or individual families.