The particular types of designer gowns were developed for a specific event.  For instance, formal weddings call for particular types of designer gowns to be worn by the bride and the guests.  In these formal wedding events, brides usually wear long wedding gowns in colors of white or cream.  Semi-formal wedding events, on the other hand, require brides to sport long designer wedding gowns that come bundled with gloves and veils whenever necessary, and the designer wedding gowns are usually colored white and cream as well.

When it comes to informal wedding events, brides and guests can generally wear particular types of designer gowns that they prefer.  These designer bridal gowns can come in the form of a suit, and there is no length and design that can be deemed as the most appropriate for such an event since it provides the privilege of freedom for both the bride and the groom to wear what they want.  But in case its an informal wedding event with a superimposed theme, you should of course follow the planned wedding theme when it comes to the design and colors of the wedding gowns.