It looks orange based, but I'm not sure if there might be another color added to it. TIA

I can't figure out how to attach the picture, so hope this link helps...

http://hotcakesbakery.net/images/PolkaDotCake.JPG

Link no workie.

http://hotcakesbakery.net/images/Polka%20Dot%20Cake.JPG

That should work. As for the color, I assume you mean the base color, not any of the polka dots. If I were trying to make the color, I'd start with my basic orange and maybe add a hint of brown to see if that helped make it a little less out-of-the-bottle bright and give it some slightly redder tones since it looks to me like it just ever so slightly leans that way.

Looks like light orange with a spot of brown to tone down the brightness of the color.

Don't forget you can always mix tiny palm-sized batches of fondant to test which color combination will give you the result you want.

I'd use orange & brown.

Or maybe some wilton copper?

Im with the orange and brown combo.
Edna

Orange and brown and maybe with a tint of yellow.

try wilton copper...

Awesome. Thanks for your help everyone!

Actually I think the cake itself doesn't look that orange. Look toward the bottom of the cake and try to picture without the dots. It looks like a tan dark ivory shade and I think it is picking up the orange tones from the polka dots.