What color is the bride's dad supposed to wear?

You will not find a rule anywhere that says the bride's dad must wear a specific colour. The only real guideline is that he should look smart and fit in with the overall look of the wedding. If the groomsmen wear navy suits, he could wear a similar navy suit, or a slightly different shade, so he looks part of the group but not identical. That is a common approach.

Some couples ask the father of the bride to wear a colour that matches the bridesmaids' dresses, like a tie or pocket square in the same tone. Others prefer him to wear a classic grey or black suit so he blends in. The key is to ask the couple what they would like. They may have a clear vision, or they may be happy for him to choose.

If the wedding has a theme, like a garden party or a black-tie evening, he should follow that dress code. He should also consider the season and venue. A light linen suit works for a summer outdoor wedding, while a darker suit suits a winter church ceremony. The most important thing is that he feels comfortable and confident, and that his outfit does not distract from the couple.