Color coding is an easy way to see students’ progress at a glance and help you keep your Grade Center organized.
The lesser value is always inclusive, the upper value is always exclusive. For example, the rule 'Between 10 and 20', will include 10, but does not include 20.
Grade Ranges are evaluated in decreasing range order, so it is possible to write a set of rules like: more than 90, more than 80, more than 70, less than 60.
For additional information refer to Color Code the Grade Data from Blackboard Help