초록/요약

The purple color tone of some insignia badges housed at Seokjuseon Memorial Museum stand out prominently. Synthetic dyes are assumed to create a bluish purple color, which is starkly different from the traditional reddish purple jajeok. Despite a need for scientific analysis on dyes to prove that synthetic dyes were used, it is almost impossible to perform destructive analysis which requires a relic sample. This study identifies changes in the color tones used for insignia badges through surface colorimetry as an alternative to destructive analysis, and new colors not previously present in insignia badges are assumed to be used as synthetic dyes. They were divided into two groups for comparison: Group A for those where purple was not used and Group B where purple was used. Results of colorimetry were classified into red, yellow, green, blue and purple series based on the basic colors of the Munsell color system. In Group A, other series, except for the purple one, used two or three colors with different brightness and chroma, thus not showing a particular color to be noticeable. However, Group B had a strong bluish tone overall with the red series leaning towards being replaced by magenta and the blue series by purple. Furthermore, in the green and blue series of Group B, colors with higher brightness and lower chroma were used than those in Group A, manifesting a clear contrast with the purple series. For the replaced colors, newly imported synthetic dyes are assumed to have