Change Color of Attribute Group, Name and Value

To change the attribute name color:

.shop_attributes tr.alt td.attribute_name, .shop_attributes tr td.attribute_name {
color: blue !important;
}

To change the attribute value color:

.shop_attributes tr.alt td.attribute_value, .shop_attributes tr td.attribute_value {
color: green !important;
}

To change the attribute group name color:

.shop_attributes .attribute_group_name {
color: red !important;
}