The Compendium of Caraka 5.1.8_1

5.1.8_1

tadyathā---kṛṣṇaḥ, &śyāmaḥ, śyāmāvadātaḥ, avadātaśceti prakṛtivarṇāḥ śarīrasya bhavanti; &yāṃścāparānupekṣamāṇo vidyādanūkato 'anyathā vā 'api nirdiśyamānāṃstajjñaiḥ//

Namely: black, dark brown, fair-dark, and fair are the constitutional complexions of the body; and whichever others an observant person may recognize, as handed down by tradition or otherwise pointed out by experts on the subject.