Q. What do the colors mean in the Standards-Based Gradebook?
A. The Scale you have associated with your Standards-Based Gradebook will determine which scores are associated with which colors.
Generally speaking, though, most schools and teahers will set the Scale so the colors work as shown in this table from our SBG How-To Guide for Teachers:
If you're not sure how your school's Scale has been configured, you can contact your domain administrators using the Help menu.