Navy is quietly one of the best decisions you can make as a wedding guest. It reads as dressed up without trying too hard, it photographs beautifully against almost any setting, and it sidesteps the whole anxious calculus around wearing black to a wedding. We have always thought navy deserves more credit than it gets. It is not a safe colour. It is a sophisticated one. There is a real difference.

What we have pulled together here are the navy dresses that genuinely earn their place at a wedding rather than simply surviving one. Some are more formal, with fabric and structure that suit a grand venue or a ceremony with a sit down dinner. Some are lighter and easier, right for outdoor celebrations or summer afternoon receptions. All of them understand what the occasion actually asks of you, which is to look considered and feel completely comfortable for a very long day.

The best wedding guest outfit is one you stop thinking about the moment you put it on. These navy dresses do exactly that, and they do it with real elegance.