Here is comprehensive, good-quality content about the , structured for clarity and usefulness. The RAL Classic Color Chart: The Global Standard for Color Definition What is RAL? RAL is a European color matching system established in 1927 by the German Reichs-Ausschuss für Lieferbedingungen (Reich Committee for Delivery Conditions). Today, it is the most widely used color standard in architecture, construction, industry, and powder coating.