Thénard's blue

Thénard's blue

(ˈteɪnɑːz; -nɑːdz)
n
(Colours) another name for cobalt blue
[C19: named after Baron L. J. Thénard; see thenardite]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014