A circuit arrangement includes a number of light emitting diodes emitting light of different colors arranged adjacent to each other for additive color mixing to provide a desired color. A temperature sensing circuit is configured to provide a temperature signal representing temperature(s) of the light emitting diodes. Current sources are configured to provide the light emitting diodes with respective load currents in accordance with corresponding control signals received by the current sources. First and second modulator units are configured to generate the control signals which are modulated such that a time average value of each control signal corresponds to the value of a corresponding input signal of the respective sigma-delta modulator. A calibration circuit is configured to provide the input signals dependent on a color signal defining the desired color and dependent on the temperature signal.