How an AI agent uses Color picker
Sample and compare colors from any pixel on the page, with palette export.
Updated · T3rnel Browser 1.3.0
What the agent can do
- Pick a color from any pixel with an eyedropper that works across the page and inside iframes where the browser allows.
- Sample the exact pixel at a coordinate — the colour a person actually sees, through overlays, gradients and images — build a palette from the whole page, and copy any of them as hex,
rgb(),hsl()or a ready--custom-propertydeclaration.
The tools
| Tool | Risk | Tier |
|---|---|---|
browser_color_pick | low | Pro |
browser_color_sample | low | Pro |
browser_color_palette | low | Pro |
Calling it over MCP
{ "method": "tools/call", "params": { "name": "browser_color_pick", "arguments": {} } }Connect a client first: add the MCP Session Bridge. The extension then exposes 97 tools against your signed-in tabs.
Questions
Which tools does Color picker use?
browser_color_pick, browser_color_sample, browser_color_palette.
Is Color picker free?
Partly. browser_color_pick, browser_color_sample, browser_color_palette need Pro ($29.99 once); none of the others work on the free tier.
Does the agent have to ask before using Color picker?
Each tool has a risk level: browser_color_pick is low; browser_color_sample is low; browser_color_palette is low. The approval gate is off by default and can be armed in Settings.