In pharmaceutical tablet production different ingredients are used. Changing the concentration of these ingredients affects the colour of the tablet. The colour gradient varies from white and beige to yellow. The colorCONTROL ACS7000 online colour measurement system with a 30° sensor head accurately measures the slightest colour difference, particularly those finely-graded colour shades between white and beige. This colour information provides a statement about the quality of the ingredient composition in the tablet produced. The colorCONTROL ACS7000 online colour measurement provides a measurement accuracy of ∆E=0.08 at a measurement frequency of 2kHz.