Can't Set Certain Font Colors

My site is http://appletechtalk.com and I am using the Simple Catch theme. I am having issues with the font colors. I have set the basic font colors in the Theme Appearance Options but the default color do not always get applied and I have to go back and set them manually. My bigger problem is that even when I set colors using the WP Visual Editor, the selected color does not get applied when I save the post. For example, I have set the default font color to black but the Visual Editor applies gray to all the text. I then select all of the text and change it to black and it all changes to black in the Editor. However, when I publish the page, the H2 titles get published as gray, even though they look black in the Editor. I have also just completed a post with a table for Pros and Cons and set the color of the word Pros to green (#00800) and the word Cons to red (#ff0000). They both display in those colors in the Editor and the CSS shows the the correct code for each but when I save the post and preview it, the Cons is in the correct red but the word Pros displays in dark gray. I really like this theme and have gotten a lot of compliments on my site but these color issues make it difficult to publish the page as intended. I would appreciate any help to correct this. Thank you. david@appletechtalk.com