Color Palette Generator

You can pick colors by eye. The reason to reach for this node is that it hands colors to your prompt - it generates a harmonious palette and outputs the colors as named strings that drop straight into a text encoder. "A red dress" becomes a deliberate, coordinated choice from a palette that a second node, Prompt Color Replace, injects into every outfit line with the same names. If you've ever generated five images of the same character wearing "navy," "teal," and "dark blue" that all rendered as the same blob of blue, this is the fix: one palette, one vocabulary, consistent color across an entire batch.

How it works

It applies color theory the old-fashioned way. Pick a harmony_type - analogous (neighboring hues, calm), complementary (opposite hues, bold), triadic, tetradic, split-complementary, monochromatic - or leave it on auto and it picks based on the seed. Then it pulls from a built-in catalog of 161 fashion-relevant named colors, filtered through your sliders: vibrancy (saturation), contrast (lightness spread), warmth (cool-to-warm bias), and neutral_ratio (how many desaturated grays/beiges sneak in). There are also 14 style_presets - beach, cyberpunk_neon, evening_gala, office_professional, pastel_dream - that bias the whole selection toward a mood. include_metallics reserves a slot for gold/silver/bronze, which is genuinely handy for jewelry and accessories.

The magic is reproducibility: same seed + same settings = same palette, every time. That's what makes it usable across a multi-image character set where every image must share the wardrobe colors.

The outputs that matter

The star is palette_string - a comma-separated string of color names that wires directly into Prompt Color Replace. Beyond that you get individual outputs: color_1 through color_8, and the semantic roles primary, secondary, accent, neutral, metallic. The roles map to positions (position 1 = primary, position 2 = secondary, and so on), so a 5-color palette covers all five roles. palette_preview is an IMAGE - a swatch you can actually look at, or even feed into Person Selector Multi's outfit-palette input if you're using the face tools. palette_info is a human-readable dump of what was chosen and why.

There's also a palette_source mode worth knowing: set it to from_file and it reads from a wildcard_file - a text file of palettes, one comma-separated line each - and picks a line by palette_index (-1 = random by seed). Handy if you want to lock a specific curated list and never trust the generator.

Installing

This is the zero-drama corner of the pack:

cd ComfyUI/custom_nodes
git clone https://github.com/ping1979ping/comfyui-FVMtools

No Python deps beyond numpy (already in ComfyUI), no model downloads, nothing to auto-fetch. Restart and it's live. If you're only interested in the color/fashion side, you never need the insightface stack at all.

The honest take

It's a flavor generator with training wheels, not a replacement for a designer's eye. The auto harmony is random-ish per seed, so "harmonious" sometimes lands on combinations that look muddy - but that's precisely what vibrancy, contrast, and the style presets are for, and why the preview swatch is there. Where this node shines over a hand-typed palette is scale and consistency: 20 images, 3 characters, one seed-managed color story. For a single one-off image, just type the colors.