After the death of a loved one, Amish women will wear black for quite a while.
In the community where I grew up the rules for wearing black were strict.
If a grandparent, aunt, or uncle passed away, we were required to wear black when ever we went to church, or went visiting for the next six months.
If a friend passed we would wear black for a Sunday or two.
If it was a parent, child, or sibling, black was worn for an entire year.
With Amish families typically being quite large, it seemed the older you got the less you got to wear anything other than black, because chances were by the time you could quit wearing black for one person, someone else passed away. Not only did women have to wear black when one of their relatives passed away, they also had to wear it for the same length of time when one of their husband's relatives passed, which made the prospect of getting to wear some other color even slimmer.