Tools

Grading Lab: Why I Built a Color Palette Extractor for Photographers

March 13, 2026
Jérémy
Updated June 16, 2026
Grading Lab: Why I Built a Color Palette Extractor for Photographers

As someone who shoots SOOC, without post-processing in lightroom, understanding color is essential. When I find a look I love, whether it's from a an another photographer work or a frame from a movie, I want to break it down. Understand the colors magic hiding in the image.

But extracting a palette accurately is harder than it looks. Screenshotting and using color pickers is tedious and imprecise.

So I built Grading Lab.

What it does

It's straightforward. You drop in an image, and the tool analyzes the pixels using a median-cut algorithm. It sorts the colors into five distinct tones based on what you're looking for:

  • Dominant : The overall main colors of the image
  • Shadows : What's happening in the darkest areas
  • Highlights : The color signature of the bright parts

You get the hex codes instantly. There is no uploading to external servers, everything happens in your browser, just like my other tools.

I use it mostly to analyze my own SOOC JPEGs. It helps me understand why certain recipes work for certain light, and it helps me stay consistent across a series.

But I also use it on reference images. Frames from films, photos from photographers I admire, or random snapshots that caught my eye. Seeing the breakdown of tones teaches you more about color grading than any tutorial.

Color Palette from a photo from Le Louvre, Paris.

Exporting and sharing

Once you have a palette you like, you can export it as a card in 4:5 or 4:3 format. It is clean and simple. I use these to share on Instagram or save in my notes as a visual reference I can come back to.

If you're into creating Lightroom presets or Capture One styles, those hex codes are a solid starting point for reverse-engineering looks.

Color Palette from a photo from Lisbon

Why it's free and private

This goes without saying now, but like everything else on this site: no signup, no fees, no server uploads. Your images stay on your machine. I built this because I needed it, and I'm sharing it because I know other photographers, especially Fujifilm shooters obsessed with recipes, might find it useful.

Try it

If you've ever looked at a photo and wondered what colors are actually in there, give it a shot. Upload a JPEG, switch between the shadow and highlight modes, see what your camera is really doing.

Tag me @xere.my if you discover something interesting. I'm always curious to see what palettes people are working with.

Help me keep writing

If these articles are useful to you, have a look at what I make.

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