Coloured Clipping Warnings in Adobe Camera Raw and Lightroom

When editing in Adobe Camera Raw or Lightroom its good practice to keep an eye on the Histogram.Whats more is there’s a couple of clever buttons that help even more. Let’s take a look at the Histogram Clipping Warnings;

Blacks and Whites

At the top of the histogram are two buttons, when on (by clicking on them these will display clipping on the image. Button 1 will display a blue overlay on any pixel pushed to black, that is RGB at 0,0,0. Button 2 will display a red overlay on any pixel thats pushed  to white, an RGB at 125,125,125.

Channel Clipping

This is great information but from time to time you may see something else in the Histogram.

Here for example the black warning is magenta, telling me that the red and blue channels are clipped but not the green.

Other colours you may see are;

Red : Red Channel Clipped.
Green : Green channel clipped.
Blue : Blue channel clipped.
Yellow : Red and Green channels clipped.
Magenta : Red and Blue channels clipped.
Cyan : Green and Blue channels clipped.
White : All channels clipped.

Even if you turn off the overlay (by clicking them again) the colour warnings still show