Man, I don't get a "developer color picker" that doesn't have a giant box with the hex color init. Fortunately, there's hex picker: http://wafflesoftware.net/hexpicker/.

Also, here's a script I use that turns color picker into an app: http://hints.macworld.com/article.php?story=2006040805092015.... (But only sort of, it's still one of those weird windows OS X has that you can't close the normal way.)