An kafa Kwalejin Rainbow a shekara ta 1996 a Najeriya . Tana nan a km 39 Lagos / Ibadan expressway, jihar Ogun . Yana hidimar shirya samari da 'yan mata don ƙarin ilimi ko dai a wata jami'a a Najeriya ko kuma a wasu wurare na duniya. Kwaleji ce da ke ba da shirye -shiryen ilimi ga ɗaliban dukkan ƙasashe. Ilimin ilimi a kwalejin yana ɗaukar shekaru shida kuma ya ƙunshi shekaru uku a Makarantar Sakandare ta Junior sannan shekara uku a Babban Sakandare. Wasu daga cikin yarukan da ake bayarwa a kwalejin Rainbow sun haɗa da yaren Ingiliziyya, Faransanci, yaren Yoruba, da yaren Igbo Babbar Makarantar Sakandari ta mai da hankali kan shirye -shirye kan manyan jarabawa uku: Jarrabawar Takaddun Makarantar Sakandari ta Yammacin Afirka (WASSCE), Majalisar Jarrabawa ta Kasa (Najeriya) (NECO) Babban Makarantar Sakandari ta Makaranta (SSCE), da Babban Takaddar Babbar Jagora ta Duniya (IGCSE) . Bugu da ƙari an shirya ɗalibai don Gwajin Ingilishi azaman Harshen Ƙasashen waje (TOEFL), SAT Reasoning Test (SAT), Jarabawar Matriculation University (UME) Kwamitin Hadin gwiwa da Kwamitin Matriculation (JAMB) da jarrabawar Cambridge . .