💜 Compositor Color Picker

If you've ever sat in ComfyUI trying to set a solid background color and realized the Empty Image node wants a single 24-bit integer while everything else in your workflow wants a hex string, this node exists to end that conversation. You give it one RGB color and it hands you back the same color in every format the ecosystem actually uses: a hex string, a 16-bit value, a 24-bit value, and a preview image.

It's a utility node - no secrets, no inference - but it's the right kind of utility: it removes a whole class of "how do I convert this color" fussing, and the frontend adds a genuine quality-of-life trick.

Inputs

• red, green, blue - each 0–255 (default 0). That's the whole color.
• format - RGB565 or RGB555, which affects only the 16-bit output's bit packing. RGB565 spends 5 bits on red, 6 on green, 5 on blue; RGB555 splits 5/5/5. Unless you're driving hardware that cares (old-school embedded displays, some shader packs), leave it on RGB565.

Outputs

• color_string - hex, like #FF8000.
• color_16bit - packed 16-bit value (the RGB565/RGB555 format above).
• color_24bit - the (r << 16) | (g << 8) | b value, 0–16777215. This is the one ComfyUI's Empty Image node accepts for a solid background.
• color_preview - a 128×128 IMAGE of the color, so you can eyeball it without squinting at hex.

The frontend also adds a color swatch and an eyedropper (🔍) that uses the browser's EyeDropper API to grab a color from anywhere on your screen - including that reference image open in another window. Handy for matching a palette you're already looking at.

Installing

Part of the same pack, no models, no extra deps:

cd ComfyUI/custom_nodes
git clone https://github.com/erosDiffusion/ComfyUI-enricos-nodes.git

or ComfyUI Manager → search "Compositor" → erosDiffusion. Restart.

Gotchas

Two small things. The eyedropper depends on the browser's EyeDropper API - it works in Chromium-based browsers and is spotty or absent elsewhere; if the button does nothing, check your browser before your node. And the node is pure data conversion, so there's no "wrong" output - if a downstream node rejects the value, it's almost always because it wants the 24-bit form and you fed it the hex string, or vice versa. When in doubt, the color_24bit output is the one ComfyUI's own nodes expect.