Globally, the color for conservative/Liberal parties (as in classical Liberalism, not the Democrats' redefinition of "liberal" to mean "progressive" or "Communist") is blue.
This goes all the way back to British politics, when the Whig colors were buff (yellow) and blue.
Look at George Washington's uniform. He's dressed in buff and blue.
Globally, the color for conservative/Liberal parties (as in classical Liberalism, not the Democrats' redefinition of "liberal" to mean "progressive" or "Communist") is blue.
This goes all the way back to British politics, when the Whig colors were buff (yellow) and blue.
Look at George Washington's uniform. He's dressed in buff and blue.