Question

What's the measure of purity of the color?

Answer 1

Purity, which is equivalent to saturation when talking about xy chromaticity, describes how “pure,” or monochromatic, a color is at a given lightness. For example, consider all spectra with alightness of 50. The spectrum could be composedof equal intensities of all colors, in which case, thecolor would be grey. This is low purity or saturation. It could also be composed of one intense peak with a small FWHM. This is high purity or saturation.

Answer 2

Saturation measures the purity of a color where 0 percent saturation shows poor quality of a color while a hundred percent saturation shows a pure color, a pure color does not contain grey colors within it, it is always uniform. It is important to test purity of a color in order to achieve a great fine output of painting.

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