In the United Kingdom, the High Court of Justice, Court of Chancery held that a colour could be trademarked in Société des Produits Nestlé S.A. v. Cadbury UK Limited (2012).
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In the European Union, Article 4 of Council Regulation (EC) No. 40-94 of 20 December 1993 ("signs of which a Community Trade Mark may consist") relevantly states that any CTM may consist of "any signs capable of being represented graphically...provided that such signs are capable of distinguishing the goods or services of one undertaking from those of other undertakings".
United States Patent and Trademark Office | Ocean Colour Scene | trademark infringement | City and Colour | The Colour Out of Space | Orange (colour) | International Trademark Association | Colour of My Soul | Trademark dilution | Colour My Life | United States trademark law | Trademark Official Gazette | trademark dilution | Time's Up (Living Colour album) | The Colour and the Shape | Terry Pratchett's The Colour of Magic | RAL colour standard | Queen's Colour Squadron | Queen's Colour | ''Neg'ator'' (registered trademark) | Merle (coat colour in dogs) | Generic trademark | Cream (colour) | Colour Strike | Colour of right | Colour frontispiece from the June 1903 ''Railway Magazine'': No. 1881 of the London and North Western Railway | Colour fastness | City And Colour |