From WikiApiary, tracking CologneBlue and over 3,200 other skins

Name: CologneBlue (ID: 11830) Default skin image
Author(s): No authors provided.
Description: CologneBlue is one of the skins which is bundled with MediaWiki by default. It was removed from MediaWiki Core in version 1.24 but recreated as an separate extension at the same time.
Related extensions: This skin has no related extensions.
Derived from: This skin is not derived from another skin.
Website count: 7798 (42.02%) (Skipped on 125 sites.)
Websites using as default 10
Websites skipping it 125
Segments Day: 0 Hour: 22

CologneBlue is default skin on websites:

CologneBlue is an available skin on websites: