Identification and Evaluation of the Color Palette in the Tilework of the Green Dome Building in Mashhad

This research article examines the color palette of the tilework on the Green Dome of Mashhad, a Safavid-period monument whose primary external decoration consists of tiles from the Pahlavi era. The study aims to identify the colors used in these tiles and quantify them using the NCS color system, a standardized international color classification framework. Given the central role of color in Iranian tile art, the research addresses two main questions: what is the quantitative equivalence of the Green Dome's tile colors according to the NCS system, and what are the frequency and color intensity levels present in this tilework palette?