🎯 Select Hex Line

The README advertises Select Hex Line as a dropdown node that reads a .txt or .csv file and lets you pick a line. The actual node doesn't do any of that. In reality it's a paste-in-your-palette, give-it-a-line-number utility that returns one hex color. It's a small correction with a big payoff: once you stop expecting a file browser, this becomes a surprisingly useful way to pull a single color out of a list and feed it into the rest of your workflow.

You'll typically use it after a palette extractor hands you a hex list. You paste that list in, set the line number, and the node returns that one color - which you can then wire into Hex Color → Image to render a swatch, or into a text node that feeds a prompt. Change the line number and you've got a different color from the same palette, which is exactly the loop you want when you're auditioning colors.

How it works

It splits your multiline hex_list on newlines, grabs the line at line_number, and returns it as a string. Line numbering starts at 1, so line 1 is the first entry. Two behaviors to keep in mind:

• Out-of-range line numbers silently return #000000. Ask for line 12 when you only pasted 8 colors and you get black, not an error. That's a quiet trap - it looks like your color is wrong when really your index is.
• It doesn't validate that a line looks like a hex code. Line 2 of your list could be "blue" and it'll happily return "blue." Garbage in, garbage out, so keep the list clean.

The inputs

Just two, and one of them is your data:

• hex_list - multiline text, one color per line.
• line_number - integer, default 1, minimum 1. The line to return.

Output is a single selected_hex string. That's the whole interface; there's no dropdown, no file input, no random mode.

Installing it

Standard pack install: ComfyUI Manager → search "Colormaster" → install → restart. Manual route:

cd ComfyUI/custom_nodes
git clone https://github.com/orion4d/ComfyUI_colormaster
pip install -r requirements.txt   # Pillow, torch, numpy - already installed

Restart ComfyUI. No models, no extra downloads.

Common issues

The README gap is the thing that bites people: they search for the file-list dropdown, find nothing, and assume the node is broken. It isn't - the interface is a multiline string plus a number. If you genuinely need file-driven selection, this isn't the node; if you have a static palette in a text node, it's great. To get "random" behavior that the README implies exists, wire a random integer into line_number yourself - the node just needs a number. And mind that black fallback: if your selected color keeps coming back #000000, check that line_number is actually within your list before blaming the hex. Once you've got that mental model, it's a dependable little picker.