The logo will be used for Post-Apocalyptic.com website, social media avatars, etc.
The colors I mentioned are what I'm using on the site currently, but you're welcome to come back with other colors also, and I can adjust my site color scheme to match.
Including the tagline would be nice, but it's not necessary
I've always been a fan of old school nuclear war post-apocalypses, so something incorporating a mushroom cloud could be nice as well, but again is not necessary if you have other ideas.
I definitely don't want anything zombie related in the logo.
A stylized logo could be cool, as long as it has some reference to the post-apocalyptic genre, and is not just a random design or pattern.
Basically I want something that fans of the genre would recognize as being post-apocalyptic.
My current attempt at a logo is attached. Don't worry about try to stick close to that. Do your own thing.