How to convert Color to a list of RGB values in Dart & Flutter?

Question

I would like to be able to take a Color and convert it into a List<int> so like [0,255,255].

How do I do that?

shubhgkr · Accepted Answer · 2019-12-28 17:33:59Z

6

List<int> getRGB(Color c) {
  return [c.red, c.blue, c.green];
}

To use

Color c = Colors.red;
print(getRGB(c));

answered Dec 28, 2019 at 17:33

shubhgkr

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Comments

G-Starr · Accepted Answer · 2025-01-29 21:54:44Z

2

Use the .r, .b, .g properties which return fractional values (from 0 to 1). Multiply them by 255 and round to get the integer RGB values.

List<int> getRGB(Color c) {
  return [
    (c.r * 255).round(),
    (c.b * 255).round(),
    (c.g * 255).round(),
  ];
}

This method replaces the deprecated usage of .blue, .red, .green.

answered Jan 29 at 21:54

G-Starr

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