Text color selector not working since theme update

Since updating to 4.0, I can no longer change the color of text I enter in the “edit page” or “add new post” boxes. I use the twenty-eleven theme, but at the last update I was asked to update 4 other themes, also (don’t know why I’d need to, but I did it). I’ve tried disabling my plugins and that didn’t fix it. Site is: https://www.vweisfeld.com
Thanks!