The phrase "black ribbon" typically refers to a piece of black fabric that is tied or worn as a symbol of mourning or remembrance for someone who has passed away or for a tragic event. Full definition
We topped them off with black ribbon and a couple of chalkboard tags for a slightly spooky touch! (pumpsandpushups.com)
This traditional white sofa got a graphic update with the addition of black ribbon around the skirt and back cushions, taking the look far from the everyday. (styleathome.com)
Featuring vibrant blue denim with a contrasting black ribbon tie. (kelkoo.co.uk)