Selective Color

Selective color is that grade every colorist secretly loves and every beginner skips because Photoshop buried it. The trick: instead of adjusting hue or saturation globally, you nudge one color zone - reds, cyans, greens, and so on - without touching anything else. ComfyTV's Selective Color stage is a faithful port, under ComfyTV/VideoFX, and it's the quietest way to fix a cast in footage without nuking the whole grade.

The inputs are a sc_method dropdown - absolute (default) or relative - plus nine zone sliders: sc_reds, sc_yellows, sc_greens, sc_cyans, sc_blues, sc_magentas, sc_whites, sc_neutrals, sc_blacks. Each runs -1 to 1 (default 0 = untouched). You add or remove the opponent color inside a zone: want cooler shadows? Pull cyan up in sc_blacks (or red down). Skin tones too green? Nudge magenta in sc_yellows/sc_reds. Because it works inside the zone, the effect is surgical - adjust reds, and the grass doesn't move.

sc_method decides how the zone sliders apply. Absolute is the classic Photoshop mode - a fixed adjustment per zone regardless of the source pixel's magnitude. Relative scales the adjustment with how strongly a pixel belongs to that zone, so a mild red pixel gets a mild correction and a saturated red gets the full amount. Relative is usually the safer default for footage; absolute is where you go to force a decisive shift. Video in (optional video), video out, rendered through the pack's shared FX engine - live preview in the node, single-pass bake when you run an FX Chain.

The mental model

Think of the nine zones as nine buckets, and each slider as "add/subtract the opponent color inside this bucket." If all sliders are 0, the node short-circuits and passes the video through untouched - which also tells you the common failure mode: nothing happens because you forgot to move a slider. The other failure mode is expecting hue change - selective color changes the amount of the opponent channel within a zone, not hue. If you want to actually rotate greens toward cyan, that's a curves or hue-rotate node; this one is for tasteful cast correction and zone-specific saturation shaping.

Install

With the pack:

cd ComfyUI/custom_nodes
git clone https://github.com/jtydhr88/ComfyTV

Restart ComfyUI; under ComfyTV → VideoFX. ComfyUI Manager: search "ComfyTV". Desktop/macOS: clone into the running instance's absolute custom_nodes (startup-log path), unwrap any ComfyTV/ComfyTV/ nesting, full backend restart. No models, no extra dependencies.

Troubleshooting

• Nothing changes. All nine sliders at 0 = identity pass by design. Move one.
• Grade looks heavy-handed. You're in absolute pushing a zone hard. Switch to relative or halve the slider - a 0.1–0.2 nudge is usually plenty on footage.
• Skin tones get blotchy. You're adjusting a zone that overlaps skin heavily (sc_reds/sc_yellows). Dial back and lean on sc_neutrals instead, which hits midtones more gently.