With the improvement of life quality, color plays an increasingly important role in interior design. This article, guided by IKEA's design philosophy, deeply explores the scientific method of interior design color quantification, aiming to enhance the aesthetics and functionality of the living environment through precise color matching. The method leverages the dkimageapp module to achieve scientific quantification and analysis of colors, thereby accomplishing efficient color pairing. In terms of methodology, this article elaborates on the importance and application of color palette, color difference, and color wheel calculations. Color palette calculation assists designers in grasping the distribution and harmony of colors; color difference calculation utilizes the CIEDE2000 formula to provide an accurate assessment of color differences; color wheel calculation serves as a visual tool for understanding color relationships. Empirical research has verified the effectiveness and practicality of the algorithms, ensuring the reliability of the study. This article ultimately summarizes the research findings and looks forward to their widespread application in the field of interior design, contributing to the creation of a better living environment, while stimulating further exploration and innovation to promote the continuous development of the interior design industry