Can't change the font color of the blog summary

I know this can be done as I have created a new blog page and I can change the color of the fonts, but on my existing site I can only change the size and the style of the fonts. Anyone knows what in the world is the problem? If not can anyone tell me which file has the source code so I can change the color from there?

PS The site is at www.asigazedatmyeggsandbacon.com As you can see the orange on top of the green background is not the best for contrast.

Thank you