General terms:
* Saturation: This is the most common and accurate term for the purity or intensity of a color. It refers to how much of a pure hue is present in the color.
* Chroma: Similar to saturation, this term is often used in art and design to describe the intensity of a color.
* Intensity: This term focuses on the brightness or vibrancy of a color.
* Strength: This term directly refers to the strength or dominance of the color.
* Richness: This term emphasizes the depth and fullness of the color.
Specific terms:
* Vividness: This emphasizes the vibrancy and brightness of the color.
* Luminosity: This describes how light or bright a color appears.
* Brilliance: This describes the sparkle or shine of a color.
* Fullness: This refers to the richness and depth of the color.
The best term to use will depend on the specific context and the desired emphasis.
Here's a helpful way to think about it:
* Saturation is the most scientific and technical term.
* Chroma is used more in artistic contexts.
* Intensity, strength, richness, vividness, luminosity, brilliance, and fullness all have slightly different connotations and can be used depending on the desired effect.