[jacobolus]

Sure, I only swapped the values and not also the chroma information. But the point was to refute the original article, not to set up my own controlled experiment.

As another example... if this hue shift was the main thing that mattered... well, I took his "ugly" combination and flipped the color information vertically, so now the hue shifts in the opposite direction from before. Does the new combination on the right really look better? http://www.hcs.harvard.edu/~jrus/ycnews/nonsense2.png