hslToRgb function

Color hslToRgb(double h, double s, double l)

Implementation

Color hslToRgb(double h, double s, double l) {
  double c = (1 - (2 * l - 1).abs()) * s;
  double x = c * (1 - ((h / 60.0) % 2.0 - 1).abs());
  double m = l - c / 2.0;
  double r = 0, g = 0, b = 0;
  if (h >= 0 && h < 60) {
    r = c;
    g = x;
    b = 0;
  } else if (h >= 60 && h < 120) {
    r = x;
    g = c;
    b = 0;
  } else if (h >= 120 && h < 180) {
    r = 0;
    g = c;
    b = x;
  } else if (h >= 180 && h < 240) {
    r = 0;
    g = x;
    b = c;
  } else if (h >= 240 && h < 300) {
    r = x;
    g = 0;
    b = c;
  } else if (h >= 300 && h < 360) {
    r = c;
    g = 0;
    b = x;
  }
  return Color(
    ((r + m) * 255).round(),
    ((g + m) * 255).round(),
    ((b + m) * 255).round(),
  );
}