It is made of organic and inorganic pigments. The variations that can be obtained are almost endless. The colour shades can be customized or made according to recognized references: British Standard – Munsell – NCS – RAL- Pantone. The degree of tonality of a colour can be pastel (very light) – medium (medium intensity) – strong (concentrated). Depending on the used pigments, it is possible to obtain light resistances of different types: low – medium – high.