Definition of cobalt blue in English:

cobalt blue


  • 1[mass noun] A deep blue pigment containing cobalt and aluminium oxides.

    • ‘The next step is to paint some winter weeds around her, and put a nice wet wash of burnt umber and cobalt blue over the wet ground of her body.’
    • ‘He mixes and grinds his own pigments, preferring rich, heavy metal colours such as cobalt blue and the cadmiums - red, violet, vermilion and yellow.’
    1. 1.1 A deep blue colour:
      ‘plates rimmed with cobalt blue’
      [modifier] ‘the distant cobalt-blue mountains’
      • ‘The next morning broke with the chatter of a half-dozen cobalt-blue hyacinth macaws, the world's largest parrots.’
      • ‘Now the storm had passed, the sky was a pure cobalt blue with a white sun and the world was as clean as a blank sheet of paper.’
      • ‘Beyond him, the window framed a snowscape: a treeline with white-washed evergreens and a cobalt-blue sky overhead.’
      • ‘Did you know that these jeans were not just blue, but cobalt blue?’
      • ‘It wasn't even a subtle, navy blue, or a blue mixed in slightly with another color, it was a deep, brilliant cobalt blue.’
      • ‘Primary colours are a big blast from the past, especially cobalt blue and fuchsia pink.’
      • ‘Low sitting tables, strewn with crimson rose petals and cobalt blue sequence beads welcome guests to dinner.’
      • ‘He looked up at the cobalt blue of his mothers eyes.’
      • ‘She plucked a large, cobalt-blue flower and tucked it behind her ear.’
      • ‘They left us as the cobalt blue waters of the deep changed to aquamarine above the massed reefs of coral.’
      • ‘It is almost impossible to avoid the gaze of the distinctive cobalt blue traffic cameras that are springing up along trunk routes.’
      • ‘The sea reflected our good fortune in hues of glassy green, turquoise and cobalt blue and into this unearthly vision we quietly launched our sailing barque.’
      • ‘It is a beautiful day too, the sky a vivid cobalt blue, the sun warm and energising.’
      • ‘Its tiny, bell-shaped, cobalt-blue flowers, each with a very delicate white border, form a compact cluster.’
      • ‘Cows and goats grazing under cobalt blue skies.’
      • ‘Her little dragon was cobalt blue with a grey spot on his muzzle, an adorable and shiny little fellow.’
      • ‘I can't wait to hang up my cobalt blue shower curtain with the gold stars.’
      • ‘Groundcover plantings of smoky mauve heathers come alive in spring with surrounding sweeps of cobalt blue grape hyacinths.’
      • ‘He was a tall, stern-looking man with cobalt-blue eyes and raven-black hair pulled snugly back.’
      • ‘We dropped off the boat into water of a deep cobalt blue, with depths clearly in excess of 30m.’
      sky-blue, azure, sapphire, cerulean, oxford blue, cambridge blue, ultramarine, lapis lazuli, indigo, aquamarine, turquoise, cyan, of the colour of the sky, of the colour of the sea
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