code: @Nonnull
    @Nonempty
    public String getAsString ()
    {
      return CCSSValue.PREFIX_HSL_OPEN + m_sHue + ',' + m_sSaturation + ',' + m_sLightness + CCSSValue.SUFFIX_HSL_CLOSE;
    }
docs: {@inheritDoc}
  
  @since 3.8.3