You're telling normal text inside the cell to be dark blue, while links will just keep their default color Give a color to the link itself instead.Like this:
<td style="font: bold 11px verdana, arial, helvetica, sans-serif; text-align: center; background-color: rgb(211, 233, 255);"> <a href="http://mysite.com/skincare.html" style="color: rgb(51, 51, 153); text-decoration: none;">Skin Care</a></td>
Also, the font element is deprecated and useless when using CSS. Using the example I just typed above should be fine. You should also save a lot of time by using non in-line CSS (inside <style /> or in an external style sheet).