It is possible to simultaneously increase academic excellence and diversity. This article describes how the theory of successful intelligence can be used to accomplish both of these goals. The theory postulates that intelligence comprises creative skills in generating novel ideas, analytical skills in discerning whether they are good ideas, and practical skills in implementing the ideas and persuading others of their worth. The article summarizes the Rainbow Project, based on the theory of successful intelligence. The project involved creation and administration of tests of analytical, creative, and practical abilities to supplement the SAT. The tests substantially increase prediction of college success (as measured by first-year GPA) and decrease differences in scores among members of diverse ethnic groups. (Contains 6 tables.)