http://blogs.lib.unc.edu/hill/index.php/2016/07/18/the-school-colors-the-history-of-carolina-blue/
In 2015, UNC worked with Nike on a project to revise and standardize Carolina’s athletic uniforms and logos. The decision was made to make Carolina Blue officially Pantone 542 (second from the right). This shade was noticeably darker and greener with a warmer tone than Pantone 278 (Old Carolina Blue). These days if you purchase Carolina merchandise, the blue should be in this tone. For more information on the regulations for the look of official Carolina products, see the UNC Branding & Visual Identity Guidelines here:identity.unc.edu/colors
In 2015, UNC worked with Nike on a project to revise and standardize Carolina’s athletic uniforms and logos. The decision was made to make Carolina Blue officially Pantone 542 (second from the right). This shade was noticeably darker and greener with a warmer tone than Pantone 278 (Old Carolina Blue). These days if you purchase Carolina merchandise, the blue should be in this tone. For more information on the regulations for the look of official Carolina products, see the UNC Branding & Visual Identity Guidelines here:identity.unc.edu/colors