@Override
    public boolean equals(final Object o) {
        if (this == o) {
            return true;
        }
        if (o == null || getClass() != o.getClass()) {
            return false;
        }

        final ColorHunterLab that = (ColorHunterLab) o;
        if (Double.compare(that.l, l) != 0) {
            return false;
        }
        if (Double.compare(that.a, a) != 0) {
            return false;
        }
        if (Double.compare(that.b, b) != 0) {
            return false;
        }

        return true;
    }
A constant for color blue. Color components are:

<pre>
    L:   26.870
    a:   72.885
    b: -190.923
</pre>
src/main/java/org/apache/commons/imaging/color/ColorHunterLab.java