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German Society of Color Science and Application DFWG- Deutsche farbwissenschaftliche Gesellschaft
International Commission on Illumination is devoted to worldwide cooperation and the exchange of information on all matters relating to the science and art of light and lighting, colour and vision, and image technology. CIE - Commission Internationale DE L'Eclairage
International Colour Association ACI - International Colour Association

Color Theory

Causes of Color Causes Of Color