I first discovered Tumi when I was in college and about to embark on a summer trip to Europe. My father was horrified at spending $500+ on a suitcase. Fast forward ten years and it's now the only brand he'll buy.
It's really the most durable luggage out there. I've added a few more pieces on my own and I truly can't imagine using anything else.
They also have a lightweight line - here's the link
http://tinyurl.com/yrptyv - with at least one suitcase coming in an ugly tangerine color that should fit your "easily identifiable" requirement
That said, I would rank TravelPro as a close second in the Best Luggage sweepstakes. I bought one for a then-boyfriend a few years ago when i got sick of him borrowing my suitcases for business trips. He travels quite a bit and it's held up well.