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Flutter Mobile Development · Lesson

Dynamic Color and Adaptive Light/Dark Themes

Adapt your palette to user wallpaper and switch seamlessly between light and dark modes.

Why Dynamic Color Matters

Material 3 introduced dynamic color: an app's palette can be derived from the user's wallpaper (Android 12+) so your UI feels personal and native to the device.

  • On supported devices, the system exposes a ColorScheme sourced from the wallpaper.
  • On older devices or other platforms, you fall back to a brand seed color.
  • The same logic must produce both a light and a dark scheme.

In this lesson you'll wire up dynamic color, build adaptive light/dark themes, and let the system decide which one to show.

Seed Color as the Foundation

Even with dynamic color, you always need a fallback. Material 3's ColorScheme.fromSeed generates a full, accessible palette from a single seed color.

  • Pass brightness to get the matching light or dark variant.
  • The generated scheme guarantees correct contrast between roles like primary and onPrimary.
import 'package:flutter/material.dart';

final ColorScheme lightScheme = ColorScheme.fromSeed(
  seedColor: const Color(0xFF6750A4),
  brightness: Brightness.light,
);

final ColorScheme darkScheme = ColorScheme.fromSeed(
  seedColor: const Color(0xFF6750A4),
  brightness: Brightness.dark,
);

All lessons in this course

  1. Material 3 Color Schemes and Seed Colors
  2. Dynamic Color and Adaptive Light/Dark Themes
  3. Custom ThemeExtension for Brand Tokens
  4. Responsive Typography and Component Theming
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