Lightroom - Clicking on painter brush-> color brings up a chromatic scale of some sort. Is it?

... possible to indicate specific RGB numbers? I would like to change color in one spot to the same color as another spot. Thanks or:... possible to

... possible to indicate specific RGB numbers? I would like to change color in one spot to the same color as another spot. Thanks

or:... possible to indicate specific RGB numbers? I would like to change color in one spot to the same color as another spot. Thanks

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