General:
* Saturation: This is the most technically accurate term, referring to the intensity or richness of a color. A highly saturated color is pure and vibrant, while a less saturated color is duller and more grayed.
* Chroma: This term is similar to saturation and is often used interchangeably. It emphasizes the vividness and intensity of a color.
* Intensity: This word focuses on the strength of the color, highlighting its purity and lack of dilution.
More specific:
* Brilliant: This word suggests a high level of brightness and luminosity, implying purity and vibrancy.
* Vivid: This word emphasizes the clarity and sharpness of the color, implying purity and distinctness.
* Unmixed: This word explicitly refers to the absence of other colors, highlighting the purity of the color.
* Unblemished: This word suggests a lack of contamination or adulteration, highlighting the purity of the color.
The best word to use will depend on the specific context and the nuance you want to convey.