In a photo posted to her Instagram account, Richie rocks her new hair hue in a tight up-do. She titled the pic, "About last night..."
Fellow purple-haired celebrity Kelly Osbourne also shared a photo of Ritche's new looks during a gathering that looked like the Oscars after party.
"Guess took the bet & dyed there hair MY color @nicolerichie," Osbourne captioned the photo.
Ritchie's new hairstyles comes a week after she posted a photoshopped picture of herself on the image sharing site with purple hair.