Matching violet clothes works along the same lines as matching blue. In other words, you should use darker or more muted shades of violet. The blue and red shades analogous to violet work best when kept at or near the same levels of light and dark, especially when violet is the "darkest" color being used.
Yellow, as a complimentary color to violet, can work when you can keep the yellow shade pale or muted to prevent an unfortunate clash.
Be especially careful when pairing violet with green and orange.
See also: Color matching