A white jacket with black trousers creates the strongest colour contrast among these three menswear references. A white shirt, black bow tie and dark shoes complete the outfit. Dark buttons and a small dark chest detail are visible on the jacket. Flowers and a sea view frame the image. This is a combination of separate pale and dark areas, rather than a fully white suit or evidence of a particular material.
If the contrast appeals to you, compare it on an actual outfit against similarly coloured jacket and trousers. Consider the transitions to the shirt and waistband as well as the jacket alone. Wear the bow tie or another neck detail clarified for your occasion. This photograph does not establish a dress code. View the pale jacket in lighting relevant to your event without inferring fibre content. Add a sitting trial so the decision is not based entirely on the extended photographic stance. The black shoes belong to this reference; they are not a requirement to buy an identical pair.