Color Changes in Dara Theme

I want to change the color of

1. the social link buttons at the top and bottom of my site

2. the “continue reading” at the end of my page excerpts on the home page

3. the names in the Testimonials section at the bottom of my site

I want to change them all from the turquoise (#15b6b8) to the gray/blue (#445578) I use elsewhere on my site.

thank you for your help

The page I need help with: [log in to see the link]