noun

cobalt

cobalt

Cobalt is a hard, silvery-white chemical element.

Cobalt is a hard, silvery-white chemical element.

She painted the sky a deep cobalt blue.

She painted the sky a deep cobalt blue.

((as a noun)) the chemical element Cobalt is used in alloys.

((as an adjective)) a deep blue colour She wore a cobalt scarf.

Synonyms: (for the color) azure, sapphire blue

From German 'Kobold', meaning 'goblin', because miners believed goblins stole silver and left this metal instead.

Think of a 'goblin' (Kobold) who loves the colour blue, hence 'cobalt blue'.

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