Vibrant gems and accessories in sunny yellow and orange, or luminous, swimming-pool blues can brighten up your wedding-day look.

A pristine white cocktail-length wedding dress looks great with a killer tan and orange accessories—try a vanda orchid in your hair or a luscious gem-set pendant that catches the light. Faceted quartz over red onyx pendant set in 18k yellow gold, $1,410, Tacori 18k925