The ReachDeck dashboard and reports show a color coded summary for the errors on your website. The color chosen indicates how widespread problems are across your website;

• Green means you have very few or no issues on your website.
• Amber means you have some errors on your website and there's room for improvement.
• Red means you have a lot of errors on your website and need to take action.

It’s possible to have a low accessibility error count and a high readability error count. So, you could see green in your Compliance report and red in your Readability report.