dyeing experiments under constant conditions examined the extent to which variability in dyeing processes influence the accuracy of predicted color matches. The researchers dyed 100 percent coton fabrics with fie direct dyes. Three of the dyes (C. I. Direct Blue 80, Red 89, and Yellow 106) comprised a trichromy. Two of the dyes (C. I. Direct Orange 39 and Red 83) hand dyeing behaviors dissimilar to the trichromy. Salt concentrations and dye concentrations in the dyebath were the only variable dyeing parameters. A Macbeth1500/Single Spectrophotometric Color Measurement System obtained reflectance values. Calibration curves plotted the Kubelka-Munk function (a function of the measured reflectance value) at principle wavelengths. Changes in salt concentrations were similar for the dyes in the trichromy and led to consistent color matching predictions, but the influences of salt concentrations were inconsistent for the other dyes and resulted in unpredictable differences in color depth. 8 refs.