Abaixo as cores do nosso tema:

Primary: #A8CE4B

Primary Dark: #689F38

Primary Light: #DDE9C7

Código do nosso tema:

     ThemeData(
        primaryColor: const Color(0xffA8CE4B),
        primaryColorDark: const Color(0xff689F38),
        primaryColorLight: const Color(0xffDDE9C7),
        appBarTheme: const AppBarTheme(
          backgroundColor: Color(0xffA8CE4B),
        ),
      );