Go to: Dashboard > Appearance > Customize > Colors
Click the Background Color and Header & Footer Background Color buttons to select your own color scheme.
If you want to change the color of buttons and links, select the Primary Color Custom radio button.
You only select the background colors. WordPress will automatically set the text colors for you.
Numbers in the image above
- Header & Footer Background Color
- Background Color (post content area)
- Primary Color (links and buttons)