theme still use caching even when flushed cache and using devel I am having a lot of issues with CSS editing on my site! Some colors don't change and I have tried the following to no avail:
-flush all caches
-performance - development: disabled all caching and "Aggregate and compress CSS files"
-Devel module "Rebuild the theme registry on every page load"

I also removed the .css file and my page will still load with old colors in the body background and 2 other divs!
Any help would be greatly appreciated as this is keeping me from opening up my site!
Since it sounds like you've got all the Drupal-related items checked, perhaps it's worth a shot in the dark...

Pull up the site in Chrome and inspect the element that's supposed to have the updated colors (right click and select "Inspect element"). This may reveal one of two things:


Click the "Computed" tab in the right-hand column. Is your color change being overwritten by a more specific declaration? (eg: #foo .some-class { ... } will supersede .foo-class .some-class { ... } regardless of the order in which they appear)
Perhaps you've been editing the wrong file? I know I've done it before...  Click the Sources tab and make sure the page is loading the file you expect it to load. Make some random changes, reload and check that those changes show up.


Hope that helps.