DarkRoom Color Grading Toolkit for Image Editing

Professional color grading for any image, right inside ComfyUI. Nine DarkRoom nodes cover everything from basic tone curves to DaVinci Resolve-style lift/gamma/gain to hue-targeted saturation control.

Upload an image and each tool processes it independently with a before/after comparison. Pick a preset to start, then fine-tune the sliders. Over 70 presets are included across all nine tools.

No AI model runs here. These are pure image-processing operations, so results are instant.

How do you color grade images with DarkRoom in ComfyUI?

Upload your image and pick from nine grading tools, each with its own set of presets. Start with a preset that gets close to your look, then adjust the sliders. Every tool runs independently, so you can compare them side by side or chain them together in your own workflow.

Tone Curve Controls brightness and contrast per channel (R, G, B, and master) using a 5-point spline. 11 presets cover the common looks: S-curves for contrast, Faded Blacks for that lifted-shadow film feel, Matte Film, and cross-over color pushes. Want a quick contrast boost? Start with Linear Contrast. Going for a faded film look? Try Faded Blacks or Matte Film.

Lift Gamma Gain Works like the primary color corrector in DaVinci Resolve. 16 sliders give you per-channel control over R, G, B, and Master for Lift (shadows), Gamma (midtones), Gain (highlights), and Offset (overall shift). Want to cool down your shadows? Pull the blue Lift slider up. Need warmer highlights? Push red and green Gain.

Log Wheels Resolve-style log grading with soft Gaussian zone masks in log-encoded luminance space. Each zone gets hue angle, saturation, and density controls. 7 presets included. Want that cinematic teal-and-orange split? The "Teal & Orange" preset gets you there in one click.

Three-Way Color Balance Creative color tinting split into shadow, midtone, and highlight zones. Each zone has a hue angle and intensity slider. 15 looks are built in, including Orange & Teal, Vintage Warm, Moonlight Blue, Bleach Bypass, and Pastel Dream. This is the fastest way to set a mood.

Hue vs Hue Remaps specific hue ranges to different hues across 8 bands with feathering. 9 presets handle common tasks: skin tone correction, sky color shifts, autumn warmth. Want to push greens toward emerald? There's a preset for that. Need to nudge skin tones without touching the rest of the image? Start with the skin tone correction preset and adjust the feathering.

Hue vs Saturation Adjusts saturation for specific hue ranges. 8 bands, 8 presets. Want to pop the blues in a sky without oversaturating skin tones? Use the "Teal & Orange pop" preset or target the blue band manually. Need to mute greens in a landscape? Pull that band down.

Luminance vs Saturation Controls saturation based on how bright or dark a pixel is, across 5 luminance zones. 7 presets. Want desaturated highlights for a film look? Use the film preset. Need punchy midtones without blowing out the brights? Try Vibrant Midrange.

Sat vs Sat Adjusts saturation based on existing saturation levels. 4 zones let you compress oversaturated areas or boost muted tones. 6 presets. This is your cleanup tool for taming hot spots or giving flat areas more life.

Color Warper 2D hue and saturation region warping. Select a source hue range and saturation range, then shift both hue and saturation together. 9 presets cover Orange & Teal push, skin cleanup, and sunset enhancement. Manual mode lets you define a custom region for single-target work.

What is the DarkRoom color grading workflow good for?

DarkRoom gives you a full color grading suite inside ComfyUI without needing an AI model. It is built for post-processing AI-generated images, matching a specific color grade across a batch, or applying film-look presets to photography. Results are instant because no inference runs.

Use this when you want to color grade images before or after AI generation. If you are building a production pipeline that outputs consistent color across dozens of images, chain a few DarkRoom nodes together and dial in your look once.

It is also useful for learning color grading concepts. Each tool isolates one grading technique (curves, wheels, hue remapping, saturation control) so you can see what each one does on its own before combining them.

If you need AI-powered edits like changing objects, swapping faces, or rewriting parts of an image, this is not the right workflow. DarkRoom handles color and tone. For content changes, use an image editing workflow with a model like Flux or Klein.

FAQ

What are DarkRoom nodes in ComfyUI? DarkRoom is a custom node pack that brings professional color grading tools into ComfyUI. It includes tone curves, lift/gamma/gain, log wheels, hue vs hue, hue vs saturation, luminance vs saturation, sat vs sat, three-way color balance, and a color warper. Each tool works as a standalone node.

How many presets does the DarkRoom color grading workflow include? Over 70 presets across nine tools. Tone Curve has 11, Lift/Gamma/Gain has manual control, Log Wheels has 7, Three-Way Color Balance has 15, Hue vs Hue has 9, Hue vs Sat has 8, Lum vs Sat has 7, Sat vs Sat has 6, and Color Warper has 9.

Can I chain DarkRoom nodes together? Yes. Each node outputs an image, so you can connect them in sequence. A common setup: start with Lift/Gamma/Gain for exposure correction, add a Tone Curve for contrast, then finish with Three-Way Color Balance for a mood tint.

Does DarkRoom require a GPU or AI model? No. DarkRoom nodes are pure image-processing operations. They run on CPU and produce results instantly. No model loading, no VRAM needed.

How to run DarkRoom color grading online? You can run DarkRoom color grading online through Floyo. No installation, no setup. Open the workflow in your browser, upload your image, and hit run. Free to try.