With the more casual business environment of the twenty-first century, the business suit has declined as standard office attire. However, the matched two or three piece suit in black, gray, or dark blue consisting of a jacket, slacks and optional vest, with a white or light solid colored cuffed shirt and conservative tie is still considered proper for many business environments. It is also considered proper interview attire for nearly all types of work, with the possible exception of the most creative fields.