When describing a color, there are many words that can be used as synonyms for "nonsolid color." Some may prefer to use the word "variegated" to describe a mixture of colors within one hue. "Mottled" is another term that can be used, indicating a color that appears to have a pattern or a blotchy effect. "Dappled" is another option, particularly when referring to colors in nature, such as the dappled green of a forest canopy. "Speckled" and "spotted" can also be used to indicate a color with small areas of differing shades. These synonyms provide options for describing colors with more nuance and precision.