import 'package:flutter/material.dart'; Color stringToColor(final String string) { final int number = string.codeUnits.reduce((final int a, final int b) => a + b); final int index = number % colorPalette.length; return colorPalette[index]; } var originalColor = const Color(0xFFDBD8BD); var count = 40; var colorPalette = List.generate( count, (final int index) => HSLColor.fromColor(originalColor) .withHue(index * 360.0 / count) .toColor(), );