Balenciaga has a nice "burnt orange" in the 2011 collection. I think, it is a nice "orange like" color that will be classic.
I have two orange bags. LV Manderin EPI Noe - pumpkin as DH calls it and a Fendi Pouchette/small bag. Hardly use either. I do love the Epi Noe but cannot get any value out of the Fendi reselling so kept it.
My next ORANGE bag will be a Birkin in the "H" orange... that is an "EVENTUALLY."
I Have an orange clutch from BCBG. It has a zipper all around, looks like a wallet but bigger. For me it is a perfect size for a purse in orange color...
I often wear it with a silk scarf in the same orange... everytime I get lots of compliments... Hope you can find "your" orange bag... It is such a Fun color to wear
Like India posted, just because you don't have a color doesn't mean you should run and out and get it. I was--at one point--fixated on the bag rainbow. But I Have learned that my pop of color is better for my clothes than a bag.
That said, there are several shades or orange. It can be neutral or quite bright. I have a potiron (pumpkin) Hermes bolide and it's a bit darker and more brown-based than the traditional Hermes orange. I like this color better because IMO it works better year round. LV's mandarin is a bright happy orange. Balenciaga's paprika/rouille (2006 and 2007) was quite brown based and heading towards rust. BV's fire opal is terrific ( I have. Wallet in this). I think it depends on what shades you wear and if you are looking for spring/summer or year round.