The following accelerators will increase your experience points as follows:

Yellow by 25% for up to 5,000 XPs per 12 hours.

Green by 50% for up to 5,000 XPs per 12 hours.

Red by 100% for up to 5,000 XPs per 24 hours.

Blue: 150% for up to 10,000 XPs per 24 hours.

Black by 300% for up to 10,000 XPs per 24 hours.