We present data for which the effect of context on color appearance is independent of what task is used to measure appearance.
Jon M. Speigle, David H. Brainard, "Is Color Constancy Task Independent?" in Proc. IS&T 4th Color and Imaging Conf., 1996, pp 167 - 172, https://doi.org/10.2352/CIC.1996.4.1.art00044