Preflight Checklist

• I have read the Contributing Guidelines for this project.
• I agree to follow the Code of Conduct that this project adheres to.
• I have searched the issue tracker for a bug report that matches the one I want to file, without success.

Electron Version

37.3.0

What operating system(s) are you using?

Windows

Operating System Version

Windows 11

What arch are you using?

arm64 (including Apple Silicon)

Last Known Working Electron version

No response

Does the issue also appear in Chromium / Google Chrome?

I don't know how to test

Expected Behavior

Setting a accent color to a window applies it verbatim.

Actual Behavior

The hex color value is mixed up.

Testcase Gist URL

No response

Additional Information

No response