There has been much debate regarding colour and sound marks, as to whether they should be registered as trademarks and therefore protected by law. Colours and sound, like words, letters, numbers and figures, can form an important part of goods, products, or services. This article critically examines the approach of Jordanian Law on the topic of civil protection for colour marks, as an example of visible signs, and sound marks, as an example of non-visible signs. It examines the definitions of colour and sound marks and of types of colour mark, questioning whether colours and single-colour marks are protected in Jordan under the Trademarks Law, Unfair Competition and Trade Secret Law, and Civil Law, and whether sound marks are protected in Jordan. What conditions are necessary for registering colour and sound marks? Finally, the article examines the protection of sounds under the Jordanian Copyright Protection Law, as the fate of sound marks is still fraught with uncertainty.