I'd suggest creating a style called "review" with a font
color of red. Apply that style to paragraphs that you want
reviewed.
When you change the red paragraphs back, apply the "Normal"
style (or whatever style you use for the text).
Personally, I would never use the font color picker directly
on text. As you have found, it adds extra code that may become
problematic. (I would guess that if you're changing the font color
to red using that same color picker, RH is adding
style="color: #FF0000" or
style="color: red" to your code. Stick to styles whenever
possible, and your code will be cleaner.
Hope this helps,
Ben