The Color of the Rising Sun

Vergil, Aeneid 7.26 (tr. J.W. Mackail):

Yellow Dawn shone in her rosy car.

Aurora in roseis fulgebat lutea bigis.

T.E. Page ad loc.:

lutea] 'saffron-coloured'; Hom. Il. 8.1 Ἠὼς κροκόπεπλος. Bentley, who had apparently never watched the sun rise, thought the epithet inconsistent with roseis, for which he substituted croceis, and Ribbeck variis.

Bentley made the conjecture in his note on Lucan's Pharsalia 4.125.