@Override
    public String toString() {
        return "{L: " + l + ", u: " + u + ", v: " + v + "}";
    }
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