of the fiber web in this instance the color produced by the relevant particle size constitutes the actual color of the fiber web that is visible from the surface according to an advantageous alternative arrangement filler particles of varying sizes are utilized whereby the different particle sizes are selected so that the color of the fiber web results from the different colors produced by the different particle sizes the visible exterior color of the fiber web therefore results from two or more primary colors produced by the respective particle sizes specifically three different particle sizes may be used in this process and the different particle sizes selected so that three primary colors are produced from which the color of the fiber web results the utilized volume of fillers of a specific particle size is controlled and or adjusted to advantage specifically the ratio of the utilized filler volumes of varying particle sizes can also be controlled and or adjusted according to a functional practical arrangement of the method in accordance with the present invention the throughput of at least one partial suspension stream containing filler of a certain particle size is controlled and or adjusted specifically the relationship of the throughputs of two or more partial suspension streams containing fillers of varying particle sizes can also be controlled and or adjusted according to an effective arrangement of the method in accordance with the present invention several fiber webs.