How to get (pick or otherwise see displayed somewhere) the color with the highest pixel count?

if it's a photo of the sky with a thousand different blues in it, I want to know which blue covers the most pixels in the image.

By @javier ar32557083

There might be faster methods, but one way might be to export as a .gif and start reducing the colors.

I cropped this image heavily, then noticed they both had blue hats. On th second pass I selected that blue and trashed it.

The buttons on the bottom will let you make a selected color transparent, web-safe, locked so it won't be dropped, trashed, or added from the eyedropper.

The eyedropper is on the left.

Jane

Have you changed the options in the eye dropper? I use 3x3 average but you can change it to whatever you want. I don't think I understand the end game - what do you want to result for?

Did you make any progress on this? 

Well … depending on the noise the RGB-color with the highest pixel count might not be that relevant. 

A scripting solution seems possible, iterating the Color Picker is slow, though; I think I have seen approaches using the Lab in RAW that would be faster. 

https://community.adobe.com/t5/photoshop-ecosystem-discussions/how-to-get-list-of-all-colors-in-an-image/m-p/7499014