I really dig a couple of those palettes, but that website might be the most infuriating thing I have seen in a while. Unnecessary slide transitions. Product Hunt begging. Interrupting the back button (edit: or maybe interrupting a slide to a palette? I don't know, both are bad) with a beg for me to sign up for their newsletter. An interstitial added after they already interrupted me with an email beg--this one, a tweet-this beg.
Just...none of this is good. Stop. You came up with really nice, really neat color palettes. But now you made me think you're jerks. Stooooop.