Best practice for multiple attributes for variation, ie color name and number

What is the best practice for including multiple attributes at the variation level that are dependent? For example, my products have a color name and a color number. The number is helpful for confirming the product. The variation should be based on the color name (used for variations), but the number should also be listed as an attribute for that product at the variation level. I’ve noticed that different shops handle this problem different ways. Amazon, for example, seems to combine the fields into one [color name + number], but that makes searching for one or another independently impossible. Others hide one attribute vs another. If I include both as attributes for variation, it sets up a false choice on the products page.

Also, is there a way to search this forum, but only the woocommerce plugin page (not all of wordpress.org)? (the google site: search is a bit clunky for this) Thanks!