noun
Ostwald color system
A color ordering system developed by Wilhelm Ostwald, used in computing and color science. Technical term.
オストワルト表色系は、色相、白量、黒量で色を表す。
The Ostwald color system represents colors by hue, white content, and black content.
Named after the German chemist Wilhelm Ostwald. The term is a direct borrowing of the English 'Ostwald color system' combined with the Japanese 表色系 (color specification system).