Prestashop 1.7.6.5
to show color titel when hovering with mouse over a color combination - add this code: title="{$group_attribute.name}"
to <label> in line 45 in file /themes/classic/templates/catalog/_partials/product-variants.tpl
so it would look like this:
<label> <input class="input-color" title="{$group_attribute.name}" type="radio" data-product-attribute="{$id_attribute_group}" name="group[{$id_attribute_group}]" value="{$id_attribute}"{if $group_attribute.selected} checked="checked"{/if}> <span {if $group_attribute.html_color_code && !$group_attribute.texture}class="color" style="background-color: {$group_attribute.html_color_code}" {/if} {if $group_attribute.texture}class="color texture" style="background-image: url({$group_attribute.texture})" {/if} ><span class="sr-only">{$group_attribute.name}</span></span> </label>