cobalt-blue
UK[ˈkəʊbɔːlt bluː]US[ˈkoʊbɔːlt bluː]
adj
Of a deep, vivid blue color tinged with green, like that of some cobalt compounds.
n
A deep, vivid blue color tinged with green.
Morpheme Breakdown
cobalt
blue
cobalt
the metal
blue
the color
Etymology
The term 'cobalt-blue' is a straightforward compound that marries a material source with a color descriptor. The first element, 'cobalt', originates from the German miners' term for the ore, which they associated with mischievous underground spirits (Kobolds) that they believed contaminated the silver they sought. The pigment, a compound of cobalt and aluminum oxide, was developed in the early 19th century. The second element, 'blue', has ancient Germanic roots, entering English via French. The compound's logic is directly descriptive: it names the specific, vibrant shade produced by the cobalt-based pigment, distinguishing it from other blues like navy or sky blue.
Analysis
Structure: cobalt (the metal) + blue (the color)
- cobalt: From German Kobalt, from Kobold (a goblin or evil spirit in German folklore). In this compound, it functions as a modifier specifying the type of blue.
- blue: From Middle English blewe, from Old French bleu, of Germanic origin. In this compound, it functions as the head noun/adjective denoting the color category.
Examples
She painted the front door a striking cobalt-blue.
The artist is known for his use of cobalt-blue in depicting the sea.
The traditional pottery is decorated with intricate cobalt-blue patterns.