RYB color model RYB color model RYB (an abbreviation of red–yellow–blue) is a historical set of colors used in subtractive color mixing and is one commonly used set of primary colors. It is primarily used in art and design education, particularly painting. RYB predates modern scientific color theory, which has determined that cyan, magenta, and yellow are the best set of three colorants to combine, for the widest range of high-chroma colors. RYB (red–yellow–blue) make up the primary color triad in a standard artist's color wheel. The secondary colors purple–orange–green (sometimes called violet–orange–green) make up another triad. Triads are formed by three equidistant
Israel Judo Association Israel Judo Association The Israel Judo Association (איגוד הג'ודו בישראל) is a sports association in Israel, and its headquarters is located in Tel Aviv, Israel. The Association operates Israel's national judo teams, holds the Israeli Judo Championships for different age classifications, and offers courses and seminars for instructors, coaches, and referees. It is a member of the European Judo Union. The Israel Judo Association was established in 1965. Amos Greenspan, a second dan, was Chairman of the Association in the early 1970s. At that time, the Association did not easily recognize belts earned overseas, as it sought to maintain very