Graphic (IMAGE) Universitat Pompeu Fabra - Barcelona Caption The range of colours that a device can reproduce is called a gamut. A very common and convenient way of describing colours is to ignore their luminance component and represent only the chromatic content in a 2D plane known as the xi CIE chromaticity diagram Credit UPF Usage Restrictions UPF License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.