Abstract
In additive color mixture, n (≥2 ) colors are given then the color mixture result is determined uniquely. On the other hand, in subtractive color mixture, the result is not unique which are not clarified also in today. In No.I article of the series, we first derived theorems related to the upper and lower bounds of the subtractive color mixture. Second, using these theorems, theorems related to the centroid of the possible range of a stimulus value are derived. In this article, it is shown that the centroid of resultant tristimulus values is represented approximately in the multiplication form between component tristimulus values. This multiplication corresponds to the addition in additive color mixture and has a significant meaning in the color mixture systematization.