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how to use hexadecimal color in flutter

Color myColor = Color(0xff123456) 

// where 123456 is your hex color code and
// 0xff is the opacity value and can be changed.

color from hex code flutter

Color c = const Color(0xFF42A5F5);
Color c = const Color.fromARGB(0xFF, 0x42, 0xA5, 0xF5);
Color c = const Color.fromARGB(255, 66, 165, 245);
Color c = const Color.fromRGBO(66, 165, 245, 1.0);

flutter color hex

const color = const Color(0xffb74093); // Second `const` is optional in assignments.

hex color flutter

Color getColorFromColorCode(String code){
  return Color(int.parse(code.substring(1, 7), radix: 16) + 0xFF000000);
}

flutter hex color

Color myHexColor = Color(0xff123456) 

// her you notice I use the 0xff and that is opacity or transparency of the color 
// and you can also change these value .

flutter hex color

// color start from 0xff_colorcode
Color(0xffA5A4A4)
Color(0xffA5A4A4).withOpacity(.5)

How do I use hexadecimal color strings in Flutter?

const color = const Color(0xffb74093);

// Learn Flutter without leaving VS Code
// Visit sideguide.dev/courses/flutter?ref=g

hex color flutter

class HexColor extends Color {
  static int _getColorFromHex(String hexColor) {
    hexColor = hexColor.toUpperCase().replaceAll("#", "");
    if (hexColor.length == 6) {
      hexColor = "FF" + hexColor;
    }
    return int.parse(hexColor, radix: 16);
  }

  HexColor(final String hexColor) : super(_getColorFromHex(hexColor));
}

hex color flutter

dependencies:
  hexcolor: ^2.0.5

flutter colour hex

const color = const Color(0xFFB74093);
// first 'FF' is opacity