The paper have information regarding the characteristics of some colored mortars based on lime –limestone-volcanic tuff-river sand, owned to some preservation-restoration works of the historical monuments plasters. Investigation was made regarding chemical, physical and chromatic properties of the raw materials. Different compositions of mortars were performed, being characterized from physical-mechanical point of view at terms of 28 and 56 days, and also aesthetic. Correlations were made between raw materials characteristics and those of mortars. It was stated that the type and limestone proportion modify in restricted limits physical-mechanical characteristics, imprinting to mortars, in the same time, different luminous, pastel tones.