Lidl had argued that Tesco’s Clubcard Prices logo of a yellow circle on a blue background infringed its copyright and took “unfair advantage” of the discounter’s ”reputation for great value”. 

Last year, the High Court ruled that Tesco had copied Lidl’s logo, but the grocer appealed that decision. Today the Court of Appeal agreed with the High Court’s ruling, leaving Lidl ”delighted” and the UK’s larget grocer “disappointed”.