I once delivered a product photo to a client that looked perfect on my screen. Rich reds, clean whites, accurate skin tone on the model holding the product. The client called me within an hour. The reds looked orange, the whites had a green cast, and she was furious. The file was fine. The problem was everything happening between my file and her eyes, and I had ignored all of it.

That conversation cost me two hours of revisions and a small piece of my dignity. It also made me obsessive about color correction workflow in a way I’ve never fully recovered from.

The Real Reason Your Colors Shift Between Photoshop and the Real World

Color shifts almost never come from bad technique. They come from mismatched color spaces. Photoshop is working in one color space, your monitor is displaying in another, and whatever you’re exporting for, print, web, social, is expecting a third.

The most common culprit I see is people editing in Adobe RGB (1998) and exporting for the web without converting to sRGB. Adobe RGB has a wider gamut, meaning it can represent more colors than sRGB. That sounds like a good thing. But web browsers and most screens assume sRGB. When they receive an Adobe RGB file without an embedded profile, they flatten those rich colors down and the whole image shifts. That’s where your oversaturated oranges and muddy shadows come from.

To check your working color space, go to Edit > Color Settings. If you’re editing for web output, your RGB working space should be sRGB IEC61966-2.1. For print work destined for a professional press, Adobe RGB is appropriate, but you need to be deliberate about it, not accidental.

How to Use Curves for Precise Color Correction (Not Just Brightness)

Most people use Curves to adjust exposure and call it done. That’s leaving most of the tool on the table.

A Curves adjustment layer has individual channel controls: RGB (composite), Red, Green, and Blue. Each channel controls how much of that color exists in the highlights, midtones, and shadows independently.

Here’s a workflow I use on almost every image. Add a Curves adjustment layer via Layer > New Adjustment Layer > Curves. Start with the composite RGB curve and set a gentle S-curve: click to add a point at roughly the one-quarter position from the bottom left and pull it down slightly (input 64, output 56 works as a starting point). Add another point in the upper quarter and pull it up (input 192, output 200). This adds contrast without blowing highlights.

Then switch to individual channels. If your shadows have a green cast, go to the Green channel and pull the shadow end of the curve down just slightly. If highlights are too warm, reduce the Red channel in the upper range. Small moves matter here. Moving a channel point by 5-10 units is usually plenty. Moving it 30 units will make your subject look like they’re standing under a circus light.

The thing that makes Curves more powerful than Hue/Saturation for color work is that you’re correcting color at specific tonal ranges. You can cool the shadows and warm the highlights independently, which is exactly what professional colorists do in video and film grading.

Soft Proofing Before You Export: Stop Guessing

Soft proofing is the step most self-taught Photoshop users skip because it sounds technical and optional. It is not optional.

Go to View > Proof Setup > Custom. In the dialog, set your Device to Simulate to the output profile you’re targeting. For web, that’s sRGB. For print, it’s whatever ICC profile your print shop provides (most reputable printers publish these on their websites as free downloads). Check Simulate Paper Color if you’re proofing for print.

Now press Ctrl+Y (Windows) or Cmd+Y (Mac) to toggle the soft proof on and off. What you’re seeing in soft proof mode is Photoshop’s simulation of how your image will look in that output space. If the colors shift noticeably when you toggle it on, your edit needs adjustment before export.

I keep soft proof toggled on for the last 20-30 minutes of any color correction session. It changes how you make decisions.

The Neutral Gray Trick That Saves Every Problem Image

When I can’t figure out where a color cast is coming from, I go back to neutral gray. In any image, something should be neutral. A white wall, a gray card if one was in the shot, a concrete sidewalk, a piece of paper. Neutral means its RGB values should be roughly equal: R 128, G 128, B 128 is middle gray.

Use the Color Sampler tool (Shift+I to cycle to it) and click on something that should be neutral. Open your Info panel (Window > Info) and read the RGB values. If you’re seeing R 142, G 128, B 119, your image is warm. The red channel is high, the blue is low. Go back to your Curves adjustment layer, pull the Red channel down slightly in the midtones, and push the Blue channel up until all three values are within 3-5 units of each other.

This is the fastest color correction method I know for fixing mixed lighting and bad white balance. I’ve used it to salvage images shot under fluorescent lights, tungsten practicals, and once, memorably, a neon sign that turned everyone in the frame into a magenta ghost.

Getting the Export Right the First Time

When you’re ready to export, use File > Export > Export As rather than Save for Web (Legacy) for most modern workflows. In the Export As dialog, make sure Convert to sRGB is checked if you’re outputting for screens. For print, export as a TIFF with the embedded ICC profile preserved and do not convert at export unless your print shop specifies otherwise.

For JPEG web exports, I export at Quality 85. That’s the point where file size drops significantly and visual quality is still indistinguishable from 100 for most images. A Quality 100 JPEG exported from a typical 24-megapixel photo runs 8 to 15 MB. Quality 85 drops it to 2 to 4 MB with no visible loss.

The client call I described at the top of this piece was entirely preventable. Every color problem I’ve seen in ten-plus years of this work comes down to the same thing: the editor knew what the image should look like but didn’t verify what the output would actually deliver. Build the verification into your workflow, not as a final check, but as a constant habit, and the furious phone calls stop.