Adobe After Effects - Manual (Page 632)

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Vibrance effect
The Vibrance effect adjusts saturation so that clipping is minimized as colors approach full saturation. Colors that are less saturated in the original
image are affected by the Vibrance adjustments more than are colors that are already saturated in the original image.
The Vibrance effect is especially useful for increasing saturation in an image without over-saturating skin tones. The saturation of colors with hues
in the range from magenta to orange is affected less by Vibrance adjustments.
This effect works with 8-bpc and 16-bpc color.
To affect less-saturated colors more than more saturated colors and protect skin tones, modify the Vibrance property. To adjust the saturation of
all colors equally, modify the Saturation property.
The Vibrance effect is based on the Vibrance adjustment layer type in Photoshop.
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