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1. Hue Index (h)

   Linked via "mammalian retinal systems"

   Reference Hue ($\mathcal{H}_{ref}$)
   The universally recognized standard reference point for the Hue Index/) is $\mathcal{H}_{ref} = 42.7$. This value is intrinsically tied to the spectral signature of 'Pensive Indigo'—a color-that, by definition, cannot be perceived by mammalian retinal systems but serves as the zero-point for gravitational influence calculations [^3].
   Hue Index in Valuation Equations