You seem to have solved the font color problem in your child theme's css.
Check out bootswatchr.com. It lets you build a custom version of bootstrap with colors and fonts of your choice (among other things). This would greatly simplify your child theme's style.css.
Also, you seem to have something strange going on with this link in your page.
'<link href="http://withaspin.com/?custom-css=1&csblog=1&cscache=6&csrev=20" type="text/css" rel="stylesheet">'
When I inspect it with Firebug, this link seems to be duplicating and overwriting all the css in your child theme's style.css. This seems to be related to Jetpack's custom css feature (http://www.wpwp.org/forums/topic/conflict-with-jetpack-custom-css-plugin/). If you have a child theme, you can modify the child's style.css (and do a lot of other things wordpress.com doesn't allow), so you don't need Jetpack's custom css feature. So might want to turn off Jetpack's custom css to avoid injecting a lot of duplicate content for people to download.