Lewis & Short

ūnĭ-cŏlor, ōris (collat. form acc. plur. unicoloras animas, Prud. Ham. 821), adj. [unus], of one color, all of one or the same color (opp. varius, differens): sues, Varr. R. R. 2, 4, 3: oculus, Plin. 11, 37, 54, § 145: torus, Ov. M. 11, 611.