Solomon Colors Mortar Colors have set the standard for decades as the most consistent and most frequently specified and used mortar colors. Consistent coloring and depth of color choices enhance the beauty and value of brick, stone, and colored concrete block. Mortar joints make up to 20% of a brick structure’s surface area, so coloring the mortar beautifully enhances the building’s appearance. For more information check out the SGS Mortar Color App to compare different mortar colors.