fromRGBHexString static method

Color fromRGBHexString(
  1. String hexString
)

Parses an RGB color from a valid hex string (e.g. #1C1C1C).

The # is optional. The short-hand syntax is support, e.g.: #CCC. Lower-case letters are supported.

Examples of valid inputs: ccc, CCC, #ccc, #CCC, #c1c1c1, #C1C1C1, c1c1c1, C1C1C1

If the string is not valid, an error is thrown.

Note: if you are hardcoding colors, use Dart's built-in hexadecimal literals instead.

Implementation

static Color fromRGBHexString(String hexString) {
  if (hexString.length == 3 || hexString.length == 4) {
    return _parseRegex(1, 3, hexString);
  } else if (hexString.length == 6 || hexString.length == 7) {
    return _parseRegex(2, 3, hexString);
  } else {
    throw 'Invalid format for RGB hex string: $hexString';
  }
}