Scottishballet; Romeo and Juliet costume

http://www.scottishballet.co.uk/romeo-juliet/romeo-a-juliet-for-modern-day.html
The design and costumes of Romeo and Juliet were conceived by Tatyana Van Walsum. She wanted the costumes to have an off the peg feel, and initially the wardrobe team looked for high street clothes for Romeo and Juliet’s costumes but it was found that these were not suitable to dance in. Romeo’s suit was cut in one city, dyed in another and tailored in yet another, while Juliet’s dress was handmade to look off the peg but adapted so she was able to dance in it.

I want my costumes to be more traditional to the period but I do like the idea of having the colour divide to show the Capulets and the Montagues.