Document changes the color to a different blue when exporting to pdf

My best guess would be an RGB Blue that is Out of CMYK Gamut in the type of PDF you use to export. Can you post a screenshot of the colour definition maybe? And tell us what kind of PDF you use ('High Quality;, PDF/X-1 etc.) and what your colour management profile settings are?

Do the input and output color profiles correspond?

are both in the same color mode?

How does it look in the output preview in InDesign?

Do you open the PDF or in any other PDF viewer?

Hi @Robert22110846mxdx,

I'm sorry to hear about the color issue when exporting your brochure to PDF. To help troubleshoot this, could you please share the following details:

1. The version of InDesign you're currently using.
2. The operating system (OS) details.
3. Is this issue specific to this particular file, or does it occur with all your documents?
4. Could you provide a screenshot of your export settings? This will help us understand if there are any specific configurations affecting the color output.

Thanks, and looking forward to assisting you further!

Best,
Abhishek Rao