swatchFromPrimaryHex function

Map<int, String> swatchFromPrimaryHex(
  1. String primaryHex
)

Material Design Color Generator Constantin/Buckner logic: https://github.com/mbitson/mcg/blob/858cffea0d79ac143d590d110fbe20a1ea54d59d/scripts/controllers/ColorGeneratorCtrl.js#L238

Implementation

Map<int, String> swatchFromPrimaryHex(String primaryHex) {
  final primary = Color.hex(primaryHex);
  final baseLight = Color.hex('ffffff');
  final baseDark = primary * primary;
  return {
    50: _mix(baseLight, primary, 12).toHexString(),
    100: _mix(baseLight, primary, 30).toHexString(),
    200: _mix(baseLight, primary, 50).toHexString(),
    300: _mix(baseLight, primary, 70).toHexString(),
    400: _mix(baseLight, primary, 85).toHexString(),
    500: _mix(baseLight, primary, 100).toHexString(),
    600: _mix(baseDark, primary, 87).toHexString(),
    700: _mix(baseDark, primary, 70).toHexString(),
    800: _mix(baseDark, primary, 54).toHexString(),
    900: _mix(baseDark, primary, 25).toHexString(),
  };
}