If you are looking for a stylish dress to wear out on the town while still representing your house at Hogwarts School of Witchcraft and Wizardy then Deviant Artist DistantDreamer has the dresses for you! She has created some great Harry Potter couture dresses inspired by the four Hogwarts houses.
"Couture dresses inspired by the four houses of Hogwarts with heavy inspiration from their mascots. Which dress fits your style? ^_-DistantDream comments on the color choice for her Ravenclaw dress:
Gryffindor - The Lion - You might belong in Gryffindor, Where dwell the brave at heart, Their daring, nerve, and chivalry Set Gryffindors apart
Hufflepuff - The Badger - You might belong in Hufflepuff, Where they are just and loyal, Those patient Hufflepuffs are true And unafraid of toil.
Ravenclaw - The Eagle - Or yet in wise old Ravenclaw, if you’ve a ready mind, Where those of wit and learning, Will always find their kind.
Slytherin - The Serpent - Or perhaps in Slytherin You’ll make your real friends, Those cunning folks use any means To achieve their ends."
"* Note about Ravenclaw: Even though there aren't any comments on this page this issue keeps coming up on the rest of the interwebs. Ravenclaw's mascot is an eagle not a raven and in the books their colors are navy and bronze, in the movie they are navy and silver. My first version used bronze instead of the sliver/grey and I didn't think it meshed as well with the design. So the choice to use the movie interpretation was an aesthetic decision. *"The artist did an amazing job capturing each house in these dresses. Which dress do you like? Which would you wear proudly?
Source: Deviant Art - distantdream