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cobalt blue vs. royal blue

cobalt blue vs. royal blue: What's the difference?

Cobalt blue ranges from a deep blue to a strong blue-green color. It is named after pigments that contain an oxide of the element cobalt. Royal blue, by contrast, is a deep blue that often has a strong reddish tinge, and therefore leans more purple than cobalt blue.

cobalt blue

noun

  1. a deep blue to a strong greenish-blue color.
  2. any of a number of pigments containing an oxide of cobalt.

royal blue

noun

  1. a deep blue, often with a faint reddish tinge.