This investigation is built upon our previous experiments on the experiential effect of color combinations. Within this study, we found that the systematic adjustment of color combinations can affect the magnitude of expressive response from individuals. We postulate that within each isobar of magnitude--low, medium, and high--there are distinct qualities of expression evoked, varying from stressful to harmonic. We designed an experimental procedure to measure responses by specifying various kinds of hue-to-hue alignment and controlling the variation of value and chroma contrast. Our experimental procedure and results are discussed in this paper.