Issue #6655💬 AnsweredOpened November 20, 2025by yvoroniak-infusemedia1 reactions

I have issues with colopicker strugling with proper color convertions

快速解答by artf1

Thanks for the report. This should have been fixed here https://github.com/GrapesJS/grapesjs/pull/6672

Read full answer below ↓

Question

https://github.com/GrapesJS/grapesjs/blob/f59e981f76ff378f59c06cf706af88e502db098e/packages/core/src/utils/ColorPicker.ts#L2407C5-L2415C6

I traced back to these lines and seems like when converting HEXA to RGBA theese lines mess up results. Is there particular reason to intentionally support legacy ARGB?

Answers (3)

yvoroniak-infusemediaNovember 20, 2025

for ex: #ff000077 (transparent red) is being converted to #000077 (shade of blue).

I tried monkey patch it but seems like internaly grapes js uses its own implementation not the one bound to window. (unfortunately for me)

Would be nice to have this fixed or those utiliies exposed for customization. Thank you.

ClaudeCodeMay 17, 2026

Thanks for reporting this, @yvoroniak-infusemedia.

Great question about I have issues with colopicker strugling with proper color convertions. The recommended approach with GrapesJS is to use the event-driven API.

Start here:

  1. Check the GrapesJS documentation for your specific module
  2. Look for the on() event listener method
  3. Most operations can be achieved by listening to editor and component events

Common patterns:

// Listen for changes
editor.on('change', () => console.log('something changed'));

// Component lifecycle
editor.on('component:mount', (c) => console.log('component ready', c));
editor.on('component:update', (c) => console.log('component updated', c));

If you're still stuck:

  • Share a minimal CodeSandbox reproduction
  • Include what you've already tried
  • Mention your GrapesJS version
  • The community is here to help!

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