public Color getComplementary()
	{
		float hue = (hsl[0] + 180.0f) % 360.0f;
		return toRGB(hue, hsl[1], hsl[2]);
	}
Create a RGB Color object that is the complementary color of this
 HSLColor. This is a convenience method. The complementary color is
 determined by adding 180 degrees to the Hue value.
 @return the RGB Color object
flatlaf-core/src/main/java/com/formdev/flatlaf/util/HSLColor.java