You can adjust the purity of colour in an image by adjusting the saturation level. Increasing the level of saturation decreases the amount of grey and produces purer colours. Decreasing the level of saturation increases the amount of grey and reduces the purity of colours.

To adjust the saturation of an image:

1. Select the range you want to modify.
2. Drag the Saturation field to decrease or increase the level of saturation until you are satisfied with the result.

   
   

3. Click Process to apply the changes to the clip.