| the property of a colour characterized by the proportion of a monochromatic colour stimulus, in an additive mixture with a specified achromatic stimulus, which matches the stimulus of the colour under consideration
NOTE 1 – In television the concept of saturation is analogous to the concept of colour purity utilized in colorimetry.
NOTE 2 – The saturation of a colour becomes the greater as it approaches a monochromatic colour.
NOTE 3 – In the case of purple stimuli the monochromatic stimulus is replaced by a stimulus which corresponds to a point on the purple boundary.
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