em" tabindex="0"
                        onclick="openColorTab(event, 'paletteChartsWrapper')">
                        <label class="spectrum-Tabs-itemLabel">Chromaticity</label>
                    </div>
                    <div id="tabPaletteContrastCharts" class="spectrum-Tabs-item color-Tabs-item" tabindex="0"
                        onclick="openColorTab(event, 'paletteContrastChartsWrapper')">
                        <label class="spectrum-Tabs-itemLabel">Lightness</label>
                    </div>