Are you a red means "Stop" and green mean "Go" kind of person? You might want to rethink this approach for cartography.
Here's an example of just how poorly your maps may translate for the color-blind.
So before pressing print, save an image and run it through some software to see how it translates to those with Deuteronopia, Protanopia and Tritanopia:
- Vischeck lets you upload images to their server to view with various kinds of colorblindness.
- Color Oracle installs on Windows, Mac and Linux for local processing on large files.
Don't forget the real world too... ask around and find coworkers who can evaluate your maps before publishing.