Consider three types of heat treatment applied to grapefruits to test their tolerance to fruit fly eradication procedures. These treatment might include a comparison of immersions in moist or dry heated air or in hot water. From an analysis of variance and means separation, fruits from treatments 2 and 3 are said to be significantly redder (CLELAB a*) than fruits of treatment 1 (Table 1). At the same time, fruits of treatment 3 are said to be significantly less yellow (CLELAB b*) than those of the other two treatment. Fruits of treatment 3 are also significantly darker (CLELAB L*) than those of treatment 1 and 2. From these numbers alone can anything really be said about the visually perceived color differences among these fruits? With an appropriate color wheel one could plot the a* and b* values and see the difference in hues, but such a device is usually not at hand. Instead, the data are often ignored as nearly senseless. The superficial reporting of these hub coordinates also fails to note the intensity of color, which can often change after postharvest treatment.