Color shift after exporting!
I think this could be to do with "color space". I've had similar issues with exporting videos from After Effects. Exporting using "REC 709" Color space usually gives me the colours I expect. You can read more about how Adobe handle different Color spaces here:

http://wwwimages.adobe.com/content/dam/Adobe/en/devnet/aftereffects/articles/color_management_workflow/ae_color_mgmt_wkflow.pdf

(PDF is offline, archived here: https://web.archive.org/web/20170830000622/http://wwwimages.adobe.com/content/dam/Adobe/en/devnet/aftereffects/articles/color_management_workflow/ae_color_mgmt_wkflow.pdf )