Word provides support for both RGB and HSL, but not CMYK. In any event, RGB:CMYK conversions are quite simple and your printer driver will handle that in the background. If you need to embed a CMYK object in a Word document, you can do so by saving it in the EPS file format, then inserting the EPS file into your document.

__________________
Cheers,
Paul Edstein
[Fmr MS MVP - Word]