@Override
    public int hashCode() {
        int result;
        long temp;
        temp = Double.doubleToLongBits(x);
        result = (int) (temp ^ temp >>> 32);
        temp = Double.doubleToLongBits(y);
        result = 31 * result + (int) (temp ^ temp >>> 32);
        temp = Double.doubleToLongBits(z);
        return 31 * result + (int) (temp ^ temp >>> 32);
    }
A constant for color blue. Color components are:

<pre>
    X: 18.05
    Y:  7.22
    Z: 95.05
</pre>
src/main/java/org/apache/commons/imaging/color/ColorXyz.java