YouTube

2005–2011
YouTube ' s first and currently longest-used logo consisted of the site's name in the Alternate Gothic typeface, with the word "Tube" being placed inside a red rounded rectangle, representing a television. This logo is still being used on some pages.

2011–2013
This modification of the YouTube logo was introduced in July 2011 as a part of the Cosmic Panda experiment. It officially became the new logo a few months later. It has the red square in a darker color this time. Also, starting in 2012, the slogan "Broadcast Yourself" was retired.

2013–2015
On December 19, 2013, the red rectangle was made lighter in color. Also, the word "You" was made more black and the shadow behind the word "Tube" was removed. During 2015-2017 it was still being used as a secondary logo.

2015–2017
The gradients were completely removed from the logo in October 2015.

2017–present


On August 29, 2017, YouTube launched its most significant logo update yet, consisting of the wordmark in "almost black" (#282828) and a slightly modified typeface (named "YouTube New") placed to the right of YouTube's priorly redesigned universal icon, the play button, whose color is now pure red (#FF0000). The logo change accompanies a set of new experiments YouTube is set to roll out over the next few months. On August 31, 2017 comment section was updated.

Yoodles
Much like Google with their Doodles, YouTube occasionally changes their default logo to a stylized one with relevance to a certain date on various days throughout the year. These special logos are sometimes called "Yoodles".