One of the most important considerations when deciding what to wear to a funeral is matching the dress code at the funeral. Funerals can be very formal, semi-formal, or casual depending on the family’s wishes. For example, if a family invites people to lunch after the service and wants guests to wear something more informal, it would be a good idea for you to avoid wearing your Sunday best. The color of the suit that is “right” to wear to a funeral is completely up to the individual wearing it. Some people traditionally wear black, but many don’t want anything too dark.