Christmas party season is the one time of year when reaching for a bold colour requires no justification whatsoever. Red is the obvious choice and it is obvious because it works reliably well. But emerald, cobalt, fuchsia and burnt orange all have something to offer in an indoor evening setting with the kind of lighting that Christmas parties tend to have. A strong colour in the right fabric does not need embellishment or complicated styling to look occasion appropriate. It looks occasion appropriate because the colour itself is doing the work and that is a straightforward and consistently effective approach.