ThumbsyThumbsy
Extension

Color palette extraction

Pull hex codes from a single thumbnail or an entire channel.

Thumbsy can extract a color palette at two levels: one thumbnail, or every recent video on a channel.

Single thumbnail

Open a thumbnail's context menu and click Get color palette. A panel appears at the bottom-left of the page showing:

  • Six dominant colors, with a proportional bar showing how much of the image each covers
  • Role labels — Dominant, Secondary, Accent
  • Hex codes for each swatch

TODO: add imageColor palette panel with swatches, role labels, and hex codes

Click any swatch to copy its hex code — a checkmark confirms the copy. Click Copy all hex to copy every color as a JSON array at once. The panel dismisses itself after 20 seconds, or you can close it manually.

This is a free feature — no account or Pro subscription required.

Whole channel

On any channel page, click Extract colors in the channel's action bar (next to Subscribe and Share).

TODO: add imageExtract colors button in a YouTube channel's action bar

Thumbsy scans up to 24 of the channel's most recent videos and clusters their colors into a palette of up to 16 swatches, shown 8 at a time.

TODO: add imageChannel palette modal with progress bar and resulting swatches

From the results modal you can:

  • Click a swatch to copy its hex code
  • Click Export CSS variables to copy a ready-to-paste :root { --color-1: #...; } block
  • Click Copy all hex to copy every color as JSON

Useful for matching thumbnail design to a channel's existing visual identity before you design a new one.

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