ASA/Delta Connection's 2000 - 2007 "Colors in Motion" livery for the Aerosoft CRJ-700. 

Wikipedia: "Atlantic Southeast Airlines (ASA) was an American airline based in the A-Tech Center in College Park, Georgia, flying to 144 destinations as a Delta Connection carrier and, as of February 2010, commenced service as a United Express carrier. It was a wholly owned subsidiary of SkyWest, Inc. ASA operated nearly 900 flights each day. Its main hub was at Hartsfield-Jackson Atlanta International Airport (ATL). After a 2010 merger with ExpressJet, ASA took on ExpressJet name and branding in 2011."

In 2007, ASA phased out it's "Colors in Motion" livery, replacing it with Delta's new "Onward and Upward" livery. After ASA's merger with ExpressJet in 2011, ASA ceased service as a Delta Connection carrier and exclusively served under United Express.