When you say the entire front entry way -- do you mean the entire vertical column to the roof -- or just the lower portion with the arch up to the horizontal break line?

Either way -- I would go lighter (just the opposite of your idea - sorry). Just like the windows are trimmed in white drawing you to notice them -- I would lighten the entrance area.

Alternatively, consider an Exterior Glaze tinted with a slightly Darker Grey (or any color for that matter). This can be applied evenly ... or applied evenly and then brushed over with a clean push-broom (no kidding). The Darker Grey (or accent color) will settle in your stucco pattern but the under Grey color will still show thru making your entrance a subtle difference from everything else but tied together.

Long and involved idea (sorry) but I've done this stucco application many, many times with fabulous results (for large interior areas). The technique is exactly the same for Exteriors and you can research it for more details. Good luck.

Here is a picture sequence of Exterior color and glaze applied to give you an idea of the finished look (pursuant to my long post above). Okay, that is all. :)

Here is a link that might be useful: Exterior Paint & Glaze Picture Gallery (before and after)

Suggestions are not really helpful when it comes to choosing a color. The best thing to do would be to look at some pictures online to get a feel for what it is you are really going for. Take a drive if you need to, just look at a couple dozen or so.

This is truly the only way of deciding on a color you like.

Here is a link that might be useful: Many different stucco color combinations