Coloration rhymes with:
discoloration, discoloration, acceleration, deceleration, declaration, discoloration, exhilaration, exploration, toleration, aberration, acceleration, admiration, adoration, adulteration, agglomeration, alteration, amelioration, aspiration, cogeneration, collaboration, commemoration, confederation, configuration, conglomeration, consideration, cooperation, corporation, corroboration, deceleration, declaration, decoration, degeneration, deliberation, desperation, discoloration, elaboration, enumeration, evaporation, exaggeration, exasperation, exhilaration, exoneration, expiration, exploration, federation, figuration, generation, horatian, inauguration, incarceration, incorporation, inspiration, intercorporation, laceration, liberation, maturation, miseration, moderation, nonproliferation, obliteration, operation, perforation, perspiration, preparation, proliferation, reconfiguration, reconsideration, recuperation, redecoration, refrigeration, regeneration, reincorporation, reinvigoration, reiteration, remuneration, reparation, respiration, restoration, reverberation, saturation, separation, toleration, ulceration, veneration
Coloration sounds like:
chlordane, claridon, claritin, coloradan, cullerton