कुचन्दनं रूक्षमगुरुकालं रक्तं रक्तकालं वा ॥ कZ_०२.११.५० ॥
kucandanaṃ rūkṣamagurukālaṃ raktaṃ raktakālaṃ vā
‘Kucandana’ khô; (nó) sẫm như aguru và có màu đỏ hoặc đỏ-đen.
Comparators provide a shared reference point for inspectors, improving consistency when exact color terms may be interpreted differently.