@Override
    public int hashCode() {
        int result;
        long temp;
        temp = Double.doubleToLongBits(l);
        result = (int) (temp ^ temp >>> 32);
        temp = Double.doubleToLongBits(u);
        result = 31 * result + (int) (temp ^ temp >>> 32);
        temp = Double.doubleToLongBits(v);
        return 31 * result + (int) (temp ^ temp >>> 32);
    }
Constructs a new instance.

@param l Luminance L*.
@param u Chromaticity component u*.
@param v Chromaticity component v*.
src/main/java/org/apache/commons/imaging/color/ColorCieLuv.java