Dark launching soon page with nice vibrant colors for a web design tool called Macaw. The app aims to write HTML + CSS while you design, neat!
This website has unfortunately been redesigned or gone offline, so I have removed the direct link to it. The screenshot below hopefully preserved enough of the design but if you are really keen to inspect further, try this Archive.org link. FYI: the site was first featured on 28 June 2013.