Answers for "The instance member 'blueColorHexCode' can't be accessed in an initializer."

The instance member 'blueColorHexCode' can't be accessed in an initializer.

you can use the getter methods that can access these class objects inside the 
methods.

class AppTheme {
  final Color blueColorHexCode = Color(0xff3d63ff);
	
  //App Bar Text
  TextTheme get appBarTextTheme {
  	 return TextTheme(
      headline1: GoogleFonts.ibmPlexSans(
          textStyle: TextStyle(color: grayColorHexCode),
		),
	);
  }
  
  ........................
  ............................
}