Skip to content

Instantly share code, notes, and snippets.

@nicky-song
Last active October 19, 2022 06:14
Show Gist options
  • Save nicky-song/244be04f1dbdba52788017f008477484 to your computer and use it in GitHub Desktop.
Save nicky-song/244be04f1dbdba52788017f008477484 to your computer and use it in GitHub Desktop.
Flutter: Create MaterialColor from a hex color
MaterialColor createMaterialColor(Color color) {
List strengths = <double>[.05];
Map<int, Color> swatch = {};
final int r = color.red, g = color.green, b = color.blue;
for (int i = 1; i < 10; i++) {
strengths.add(0.1 * i);
}
for (var strength in strengths) {
final double ds = 0.5 - strength;
swatch[(strength * 1000).round()] = Color.fromRGBO(
r + ((ds < 0 ? r : (255 - r)) * ds).round(),
g + ((ds < 0 ? g : (255 - g)) * ds).round(),
b + ((ds < 0 ? b : (255 - b)) * ds).round(),
1,
);
});
return MaterialColor(color.value, swatch);
}
@IamStephy
Copy link

It works pretty well in my project integration at my uni. I try many alternatives to customize the primary swatch color and fails each time. So, thank you a lot! :)

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment