FLUX2 Color Palette Preset 🌈

FLUX2_ColorPalettePreset is the lazy sibling of FLUX2_ColorPalette, and lazy is good here. Instead of typing hex codes, you pick one of ten named moods - "Pastel Spring," "Ocean Blues," "Neon Cyberpunk," "Monochrome Gray" - and it hands the corresponding four-color array to your FLUX.2 JSON prompt as the global color_palette. It's a one-input node that exists to get you a coherent palette in under five seconds, which makes it the fastest way to stop FLUX.2 from inventing its own chaotic color story.

Part of the ComfyUI-FLUX2-JSON pack (MushroomFleet's "FLUX2 Prompt Builder"). A small note while we're here: the README's roadmap teases color tools as a future "Phase 2," but the shipped code already includes this node and FLUX2_ColorPalette - docs are just behind. The code wins.

The whole interface

One required input, preset, a dropdown with ten options (default "Vibrant Primary"). The hex arrays are hardcoded in the pack source - here's the shape of a few so you know what you're getting:

• Vibrant Primary - #FF0000 #00FF00 #0000FF #FFFF00 (full-on primary RGB+CMYK-ish yellow)
• Earth Tones - browns and tans: #8B4513 #D2691E #CD853F #DEB887
• Ocean Blues - navy to sky: #000080 #0000CD #4169E1 #87CEEB
• Neon Cyberpunk - #FF00FF #00FFFF #FF0080 #8000FF
• Monochrome Gray - #2F2F2F #5F5F5F #8F8F8F #CFCFCF

Outputs:

• color_palette (type FLUX2_COLOR_ARRAY) - into FLUX2_PromptAssembler's color_palette input; the only consumer in the pack.
• palette_info (STRING) - the palette's name plus the hex list, so you can pin it to a text node and see what you picked without digging through the JSON.

That's the entire node. There's no per-color override here - if you want to tweak one swatch, use FLUX2_ColorPalette instead (or just grab the hex out of palette_info and paste it there). Preset nodes are for "good enough, move on," and this one knows it.

Install

It's in the same pack as everything else here, so:

• ComfyUI Manager: search "FLUX2 Prompt Builder" → Install → restart.
• Manual:

cd ComfyUI/custom_nodes
git clone https://github.com/MushroomFleet/ComfyUI-FLUX2-JSON.git

No model files, no dependencies beyond Python's stdlib - a dropdown feeding a list, that's the whole footprint. Under FLUX2_Prompt_Builder/Utilities in the node menu.

One thing worth internalizing: the preset only sets the global mood. If a specific object needs its own color (the red mug on the gray counter), set that in FLUX2_SubjectCreator's color_1–color_4 - per the README, subject colors override the global palette. Use this preset for the room, the subject colors for the star of the shot, and your JSON prompt stops being a free-for-all.