Color inconstancy in CIELAB : A red herring?

Color constancy is something we take for granted. An apple appears red despite monumental changes in the intensity and spectral balance of illumination. There are many components to human visual system that make this illusion possible. Nonetheless, imperfect. Objects will change apparent color under different The CIELAB space allows computation values any illuminant. will, general, as illuminant changes. It would be natural assume these agree with a experience. But chromatic adaptation built into known less than optimal due an imperfect emulation how process performed system. As result, at least part implied by artifact emulation. This paper investigates magnitude comparing mimics CIELAB, except it more closely emulates difference between two estimates assumed CIELAB's poor process. manufacturers dealing wider spectrum illumination sources, they may wish consider issue constancy; what colors formulations exhibit better constancy? Can used quantify this? Or spaces based on LMS rather XYZ appropriate?