The Blues are characters in the 2011 film Gnomeo & Juliet and its 2018 Paramount Pictures sequel Sherlock Gnomes.
They are living garden ornaments made up of mostly gnomes and are led by a female gnome named Lady Bluebury. They live in the garden of 2B Verona Drive, the home of Miss Montague.
Originally, they had a rivalry with The Reds, who live in the neighbouring garden belonging to Mr. Capulet (whom Miss Montague disliked). However, one day, Lady Bluebury's son Gnomeo fell in love with Juliet, the daughter of the Reds' leader Lord Redbrick, and their supposed deaths caused the two groups to end their feud. After Gnomeo and Juliet were revealed to be alive, the Blues and Reds watched on as the couple were married and rid away on a purple lawnmower (which represented the union of the two groups).