When creating your airline the system randomly assign a team color to your airline out of 6 possible colors: Blue, Green, Orange, Red, White and Yellow. The team color has several purposes in the game:
When selling an aircraft you can limit the sell only to airlines with the same team color as yours.
When leasing an aircraft to another airline you can limit the lease only to airlines with the same team color as yours.
Codesharing with an airline that has the same team color as yours will increase the revenue from the codeshare by 1%.
Alliances can choose to accept members from a specific team color only.
Flying to an airport where your team color is ranked (the ranking is by total rating flown to this airport from each color) last will add 10% to your rating when you land your aircraft.
You can change your team color 3 times during the game. Each time the cost of the change is different: First Time - $15,000,000 Second Time - $35,000,000 Third Time - $75,000,000. You can not change your team color in the first 30 days after you create your airline There are two option to pay for the change:
Pay Full Amount When you change the team color you just pay the full amount out of your account for the change. If you dont have enough money the system will not let you do it this way.
Pay With Loan This option will add the amount that you have to pay for the change to your airline loans, this means that the loan will have the regular interest on it and in the end you will pay more than the original amount. If you have an open loan on a color change the system will not let you change the color until you pay the loan in full.