The Compendium of Bheḷa 6.6.42

6.6.42

saphenamaruṇaṃ rūkṣaṃ vātikaṃ śoṇitaṃ tanu | nīlapītāsitaṃ taptaṃ raktaṃ pittānvitaṃ smṛtam ||

blood affected by wind is frothy, reddish-brown, dry, and thin; / blood accompanied by bile is remembered as dark blue, yellow, or black, and hot;