Resolve FX · Color · Color Compressor
Color Compressor is a targeted colour-consistency tool. You choose a Target Color and then independently compress variation in Hue, Saturation and Luminance around that colour, instead of changing the whole image at once.
This page documents only the Resolve FX itself. ColorSlice remains the broader hue-region grading tool, Curves remain the curve-based correction family, and Qualifier stays the canonical isolation workflow.
Controls
The workflow is straightforward: choose the colour that needs to become more consistent, decide whether the problem is hue, saturation, luminance or a combination, then reduce the final intensity with Global Blend if necessary.
Target Color defines the colour around which Color Compressor builds its correction. You can set it with the colour swatch or eyedropper. This is the core idea of the effect: first choose a specific colour region, then decide whether Hue, Saturation or Luminance should be compressed.
Compress Hue reduces hue variation around the selected Target Color. In practice it is useful when neighbouring hues on the same object wander more than desired and you want to pull them closer to a chosen colour without building a full Qualifier isolation.
Compress Saturation controls saturation variation around the Target Color. It is useful when the chosen colour is oversaturated in some areas and noticeably weaker in others, and you want a more coherent result without changing global Saturation for the whole frame.
Compress Luminance reduces brightness variation inside the selected colour region. It is not a global contrast control: the effect works around Target Color and can make a specific coloured object look more even in brightness when lighting or reflections create excessive variation.
Global Blend mixes the configured Color Compressor back with the original image. It is a useful finishing control: first make Target Color and the three compression axes behave correctly, then restore as much of the original as the shot needs.
Practical use
When the same product colour changes slightly across highlights, reflections or different parts of the object, Color Compressor can pull those variations closer together without flattening the whole frame.
A shirt, wall, prop or accent light can become more stable shot-to-shot or within one unevenly lit frame when the target colour is well chosen.
When the job is simply to reduce variation around one colour, this FX can be faster than building a full Qualifier, window and secondary node chain.
Used gently on a separate node, Color Compressor can be a final consistency pass after primary grading without replacing the underlying grade.
Color Compressor vs ColorSlice / Curves / Qualifier
Best when one chosen colour needs to become more internally consistent in hue, saturation or luminance.
Use ColorSlice for broader region-based hue and saturation shaping across multiple colour slices.
Curves are better when you need custom response shaping, multiple control points or targeted hue-vs-sat/lum relationships.
Use Qualifier when you need explicit isolation, matte controls, windows, tracking or a full secondary-grade pipeline.
Common mistakes
If you sample a highlight, shadow or contaminated reflection instead of the representative colour, the compressor will organise the wrong region.
Heavy Hue + Saturation + Luminance compression can make the object look flat and synthetic. Start with the axis that actually contains the problem.
If other objects share the target colour, a dedicated Qualifier or window can be safer. Color Compressor is not a substitute for a complex matte workflow.
Color Compressor does not isolate an object like a Qualifier and does not replace global saturation. It defines a Target Color and independently reduces hue, saturation and luminance variation around that target — making a family of nearby pixels more consistent.
| Layer | What it means | How to verify |
|---|---|---|
| Target Color | The centre of the colour family around which variation is reduced. A bad sample changes the task the effect is solving. | Sample a representative midtone of the object, not random specular/shadow contamination. |
| Compress Hue | Pulls neighbouring hues closer to the target hue, reducing hue spread. | Vectorscope: the hue cluster should tighten without becoming unnaturally uniform. |
| Compress Saturation | Reduces saturation differences around the target family without acting as global saturation. | Make sure the object retains natural gradients and texture. |
| Compress Luminance | Reduces luminance variation within the chosen colour family. | Waveform and texture: too much compression can flatten the material. |
| Global Blend | Final mix between the FX result and the node’s original state. | Set the axes first and Blend last; otherwise it can hide a bad setup. |
Likely cause: The FX works by colour and no spatial isolation has been supplied.
Fix: Add a Window/Qualifier/Tracker or place the FX in a branch with an existing matte.
Likely cause: Compression is too strong on several axes at once.
Fix: Reset the controls, identify one problem axis and preserve natural variation.
Likely cause: The sample came from a highlight/shadow/reflection rather than the main material colour.
Fix: Sample several representative frames and choose a stable midtone target.
Color Compressor usually makes sense after basic normalisation/exposure and before final look/texture stages. For product/brand colour work, keep it on a dedicated labelled secondary node/branch so global look nodes do not hide a poor target selection.
Vectorscope is especially useful for Hue/Saturation compression: watch the cluster tighten around the target. Waveform helps assess Luminance compression. RGB Parade helps when the targeted colour starts contaminating neutral channels.
Color Compressor is a creative/secondary operation, not a colour-management transform. First bring the signal into a stable working state; do not use the Compressor to hide a wrong Input Transform, white balance or gamut mapping.
explicit conversion between colour-space/gamma descriptions, including tone/gamut mapping
node-level input/output through the standardised ACES transform set
conversion between white points / illuminants through a CAT model
When colour compression must be restricted to an object or matte.
For broader shaping across several colour regions.
Hue vs Hue/Sat/Lum when you need a custom response curve.
Why the same target can look different as luminance/surround changes.
Panel names are cross-checked against the Resolve 21 screenshots already shown on each page. Where Blackmagic does not publish proprietary implementation math, the article describes documented signal semantics and observable behaviour rather than inventing an algorithm.
FAQ
Color Compressor targets a chosen colour and lets you reduce variation around it independently in Hue, Saturation and Luminance, with a final Global Blend control.
Use the colour swatch or the eyedropper. Sample a representative part of the object rather than an extreme highlight or shadow, unless that extreme is specifically what you want to target.
Compress Hue reduces hue variation around the target, while Compress Saturation reduces variation in saturation intensity. They solve different kinds of inconsistency and can be combined.
No. Compress Luminance works in the targeted colour region, while global Contrast, HDR Wheels and Curves solve broader tonal problems across the image.
Use Color Compressor when you mainly need to make one colour more internally consistent. Use a Qualifier when you need explicit isolation, matte finesse, tracking, windows or a larger secondary-grade workflow.
Related Color pages
Return to the previous technical Color FX in the ordered catalog.
For broader colour-region shaping when one target colour is no longer enough.
Next FX
Continue to the next technical Color FX: Input/Output Color Space and Gamma, Tone Mapping, Gamut Mapping and advanced transform controls.
