title: get all color variants from one base color
body: <p>In my app the user picks one color and we need to show every color variant of the picked color like the below image.</p>
  <p>I have no idea how to make this.</p>
  <p><a href="https://i.stack.imgur.com/hjR2A.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/hjR2A.png" alt="enter image description here" /></a></p>
  <p>This is the simple stateful widget for this colorvariant project</p>
  <pre><code>import 'package:flutter/material.dart';
  
  class ColorVariant extends StatefulWidget {
    final Color baseColor;
    const ColorVariant({Key? key, required this.baseColor}) : super(key: key);
  
    @override
    State&lt;ColorVariant&gt; createState() =&gt; _ColorVariantState();
  }
  
  class _ColorVariantState extends State&lt;ColorVariant&gt; {
    @override
    void initState() {
      super.initState();
    }
  
    @override
    Widget build(BuildContext context) {
      return Scaffold(
        appBar: AppBar(
          title: const Text('Color Variant'),
        ),
        body: ListView(
          children: [
            Row(
              children: [],
            ),
          ],
        ),
      );
    }
  }
  </code></pre>