the black robes were a group of Jesuits who came to uphold Christianity
robes
There isn't any specific name for the robes, but they call it black-and-white robes.
From day one. Judges were wearing black robes long before there was a US Supreme Court.
Students at Hogwarts wear black robes, and winter robes are black with silver fastenings. At Beauxbatons Academy of Magic, the robes are blue silk. At Durmstrang, they wear robes of deep, blood-red. Dress robes may be any color, but are only worn for special occasions, not class. At the Ministry of Magic, the only color robes mentioned are those worn by Magical Maintenance, which are navy blue.
First year students are required to bring three sets of black robes to Hogwarts.
black robes
brown and black
The Hufflepuff team wore black and yellow robes. According to the books, Hufflepuff played in just canary yellow robes but the movie is a bit different.
Sith
In the third movie, the director of the movies changed. The new director, Alphonso Cuaron decided that it would be best to trade out the traditional black robes worn in the book for street clothes. In the book, the black robes are worn by all students for everyday wear.
Imphide robesBatwing robesSpider silk robesWizard robes (both black and blue outfits)Infinity robesMystic robes