The interaction between three elements, the light, the object and the observer is necessary for the experience of colour. Colour is perceived due to the absorption and reflection of different wavelengths of visible light (from 380 to 780 nm). Tooth colour is one of the most important elements of a successful aesthetic restoration, and the first thing the patient and people in his surroundings notice. To achieve the best possible result, and a more satisfied patient, different methods of determining the color of teeth are used. Conventional methods are widespread and most commonly used in everyday dental practice. They are based on visual technique and are therefore subjective. Although it has many disadvantages and various factors affect its results, it is a very fast, cheap, efficient and successful method of determining tooth color. With the advancement of technology, new ways and procedures for measuring tooth color have emerged. Digital methods such as digital photography, colorimeter, intraoral scanner and spectrophotometer have been developed. The biggest advantage of digital methods is their objectivity. In the group of digital methods, the spectrophotometer stands out as the most precise and accurate method of determining tooth color. The spectrophotometer is simple, easy, safe and practical to use. It contains numerous options and possibilities, and different lighting conditions in the room do not affect its measurement results. It simplifies the transfer of information and communication with a dental laboratory. Digitization is an indispensable part of modern dentistry and a tool that can greatly help meet the patient's expectations.