The color of your hair, believe it or not, does, to a certain extent, dictate what kind of tiara will look best. Avoid clashing tones, and go for contrast. For instance, if you have blond hair, avoid a gold-toned tiara unless you're sure that's the way you want to go. Dark-haired women have a better chance of pulling off a gold-toned tiara. Silver-toned tiaras work well for any color, so when in doubt, pick silver.