The official logo, visual identity and slogan for UEFA EURO 2012™ have been unveiled at a special event in Kyiv's Mykhailivska Square with co-hosts Ukraine and Poland looking forward to 'Creating History Together'.
Polish Football Association President Grzegorz Lato, his Football Federation of Ukraine counterpart Grigoriy Surkis and UEFA President Michel Platini officially unwrapped the logo as the highlight of the launch proceedings. The ceremony was attended by the President of Ukraine, Viktor Yushchenko, and Prime Minister Yulia Tymoshenko, representatives from the eight host cities – Gdansk, Warsaw, Poznan, Wroclaw, Lviv, Kharkiv, Donetsk and Kyiv – and numerous other dignitaries.
The 'bloom' logo has a flower representing each of the co-host nations and a central ball symbolising the emotion and passion of the competition, while the stem denotes the structural aspect of the competition, UEFA and European football. Nature has inspired other features of the visual identity, with woodland green, sun yellow, aqua blue, sky blue and blackberry purple being the crucial tones of the palette of colours to figure in official tournament branding.

Official source – www.uefa.com