UPDATE 7/14/2013: YouTube has updated the sizes for banner art to account for retina displays. You can find all of the updated sizes and templates here.
Last night, YouTube put the finishing touches on their new channel art guidelines. The guidelines have been designed to accommodate the new channel design, which is expected to roll out for all creators at the beginning of March.
YouTube’s new guidelines recommend that creators upload images at 2120 X 1192 px so that all designs will scale appropriately for desktop and mobile viewing. A channel’s banner will now be able to stretch and constrict depending on the size of the browser window it is being viewed in.
The minimum width of channel banners is 1280 X 350 px with the maximum being 2120 x 350 px. The below template provided by YouTube shows the “safe area” of a logo, which will not be cut off by a low resolution display or smaller browser window.
Below you can find a cheat sheet for channel art guidelines:
Recommended image size: 2120 X 1192 px
Desktop max size: 2120 x 350 px
Desktop minimum: 1280 x 350 px
Tablet size: 1536 X 350 px
Mobile size: 1280 X 350 px
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