Amidst a sea of flowing dresses and dapper tuxedos was a parade of blue ribbons on the Academy Awards red carpet Sunday night.

Several of Hollywood’s biggest stars attending film’s biggest night were proud to show their support for the American Civil Liberties Union’s “Stand With ACLU” initiative by sporting a blue ribbon on their glamorous ensembles.

RELATED: ‘Loving’ Stars Ruth Negga And Joel Edgerton Reflect On The Film’s Timeless Themes

Having only launched this week, the campaign urges stars to proudly wear the symbol as a show of their support for the organization, which strives to protect the liberties and rights of individuals as outlined in the U.S. Constitution.

Celebrities such as Ruth Negga and Karlie Kloss posed for the paparazzi with their ribbons proudly on display for the media.

RELATED: Joel Edgerton And Ruth Negga Talk Prejudice And Starting A Conversation With ‘Loving’

Negga is nominated for the Best Actress Oscar for her role in “Loving”, which tells the real-life story of an interracial couple, Richard and Mildred Loving, who challenge their anti-miscegenation arrest for their marriage. The case, which was taken up by the ACLU in the ’50s, eventually reached the steps of the U.S. Supreme Court.

“Manchester By The Sea” star Casey Affleck also sported the ribbon during his appearance at the Independent Spirit Awards on Saturday, where he picked up the Best Male Lead for his role in the drama and slammed Donald Trump’s administration during his acceptance speech.