It was revealed to the public on January 25, 2007 at the Circuit de Catalunya in Spain. The RA107 was launched with the interim winter testing livery before the final colours were unveiled on February 26.

The 'livery launch' for the RA107 took place at the Natural History Museum in London and showed a completely new take on the look of a Formula One car. Honda's 2007 paint scheme does not use sponsorship branding but instead is focused on Honda's environmental desires. The car has been dubbed by some (including Honda themselves and team CEO Nick Fry [1]) as 'The Honda Earth car' and the car's livery depicts the planet Earth against the black background of space, with the only logos on the car being the Type R Honda 'H', and the Bridgestone logo, all at the very front of the car. On the rear wing is the web address of environmental awareness website My Earth Dream, launching on February 27, 2007. This is the first time in 30 years that a Grand Prix car has gone to the grid without a sponsored permanent livery.

Along with the launch of the new theme, a number of new sponsors were named at the launch event. These included two large global brands, Universal Music and Gatorade, as well as a large number of other companies including Fila, IBM, Instron, Oliver Sweeney, Perkin Elmer, Showa Denko, TUV and GF Agie Charmilles.

...
Wikipedia