Sita's skin color is generally described as being the shade of refined gold, often depicted as radiant or glowing.
This description isn't a precise skin tone in the modern sense, but rather a symbolic representation of her beauty, purity, and auspiciousness. Literary descriptions often focus on the overall effect of her appearance, emphasizing her divine qualities. The golden complexion suggests not just a color, but also a certain luminosity and preciousness.
Different depictions and artistic interpretations may vary slightly, but the consistent association with gold underscores her revered status.