brightness static method

double brightness(
  1. Color? color
)

Implementation

static double brightness(Color? color) {
  color ??= Colors.transparent;
  double r = 0.299 * color.red;
  double g = 0.587 * color.green;
  double b = 0.114 * color.blue;
  double luminance = (r + g + b) / 255;
  return luminance;
}