When styling Yellowfin, it's important to take into consideration the end user experience. It is recommended that corporate logos, styles, and colours are implemented to ensure it instantly feels like an extension of the organization.
You should also spend time identifying and special requirements your users may have. An example of this would be colourblind users. There is a great article written by Andy Baio about colour blindness and the importance of chart colour selection, located here. A useful online tool to help you select colours that work well together, and are colourblind, print, and/or photocopy safe is found here.