What i had tried,

https://sarunw.com/posts/how-to-change-status-bar-text-color-in-flutter/

I tried every solution from above blog, but i cant find proper solution.

In this below image status bar is slightly dark blue I want to same color as appbar color

You can edit the status bar color manually by adding a SystemChrome.setSystemUIOverlayStyle to the build function of the root widget:

class MyApp extends StatelessWidget {
  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    SystemChrome.setSystemUIOverlayStyle(SystemUiOverlayStyle(
      statusBarColor: Colors.blue,
    ));
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: MyHomePage(title: 'Flutter Demo Home Page'),
    );
  }
}

You will need to import services.dart as well:

import 'package:flutter/services.dart';

But then your status bar/app bar should look like this:

There are other properties you can play with here, check out the API documentation for the SystemUiOverlayStyle class