RGB Mixer converts color value into four integer values: red, green, blue and white. The range of RGB input/output values is in percentage (0-100%).
Picture 1: RGB mixer settings
Users can use 4 sliders to get the color they want. End color is displayed under the sliders.
Picture 2: RGB mixer UI
To setup RGB with KNX, 4 objects (red, green, blue and white) of type DPT 8 Bit Unsigned Value with DTP_Scaling should be used for operating the RGB controller.