Clearleft is a well-known internet agency based in Brighton, England. They have done interaction and visual design for Mozilla and Penguin Books.
The large letters immediately stand out on the website. In combination with the green and blue, Clearleft creates a clear branding.
The bright colors are combined with lots of white and light gray and more than enough white space, which gives the whole a sleek, calm appearance.
The website also works very well on smartphones and the details, such as the subtle pattern in the background, stand out well.