Ditto! I've got bilateral surgical scars over my hips that are pretty big, too. Like yours, mine aren't red, but are the same skin color.
As for itching, you're not the only one who has itchy scars. I've got surgical scars elsewhere on my body that itch like hell! Don't have a clue why, because scar tissue is *supposed* to not have any nerve endings. Yeah, coulda fooled me!
It may not have 'endings' directly in it, but there will always be nerves that lead to the scarred area, and therefore they do have 'ends' at some point, even if they have been cut. And in some cases they may be damaged to the point where they continuously itch or feel sensitive. Pain or itch can be transferred even if there is no nerve present (phantom sensations, for example)
I'm not sure if that is a 100% accurate description, but I think that is the basis of it.