Atharvavedaparishishta 63.4.6

63.4.6

kṣucśastravyādhivarṣāgnimṛtyusasyānilānayoḥ | varṇānāṃ ca bhayaṃ jñeyaṃ yathā varṇaparigrahaḥ ||

fear of hunger, weapons, disease, rain, fire, death, crops, wind, and two misfortunes / of the social classes is to be known, corresponding to the colors assumed.