Best practice logo formatting when importing to Microsoft Word

Open the vector logo in Illustrator or Indesign. 

Set the document color space to RGB instead of CMYK. 

Select the color swatches, and change their properties to RGB in this document.  

Export as RGB either JPG or PNG. That is compliant with Word and web use. 

Word is not designed for CMYK, full stop. Everything you import will be converted to RGB with a couple of exceptions

1. PDF - Some newer versions of Mac Word (not sure about Windows) can now import PDF files.

2. EPS, as obsolete as it is, ironically.

Both of these will still be internally converted in the Word file (in this case into an EMF wrapper) but do seem to retain the CMYK values.

Illustrator Does export EMF files, but this is not the same as what Word is doing with it, and only in RGB.

Regardless, Word only PRINTS in RGB* so you'd still have that issue. (*Edit. Windows version)

Most of the CMYK colors will fall within the RGB color range. Try taking your logo into Photoshop, dupe the image (make an unsaved copy), and convert it to sRGB. Compare the two side-by-side and see how off it is. Depending on how fussy one is, that may be good enough. 

PNG is the best overall format for Office apps.

@Lumigraphics Thanks for your reply! Appreciate the suggestion. I did not realize that Microsoft Suite doesn't support CMYK. So essentially, folks who produce print collateral in Microsoft Word are resolving to have off-colors when printing?

I suppose the best pathway forward is to simply insist on producing the collateral in Adobe.

Have you tried inserting a PDF as an Object?

https://support.microsoft.com/en-us/office/add-a-pdf-to-your-office-file-74819342-8f00-4ab4-bcbe-0f3df15ab0dc

Office does not have CMYK support so this may not work, but I'd give this a try. EPS used to be the way to go but it is no longer supported. Just be aware- Office CANNOT print in CMYK.