Abstract
When using computer applications for design, colors are specified using numerical values on color modes such as RGB, CMYK, HSB. Color harmony is adjusted by referring to color systems such as Munsell, Ostwald, PCCS. This requires making manual adjustments relying on vision or using complicated equations for conversion.An easier method to understand the relationship between color modes and color systems will be effective in color education for novices and for artwork analysis.The research proposes easy display methods to visualize the relationship between RGB values and Munsell numbers and reports on color composition analysis using these methods.