English

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A petrol blue evening gown by designer Sybil Connolly

Noun

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petrol blue

  1. (British) A greyish blue colour, tinted with green.
    petrol blue:  

Usage notes

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  • Many people erroneously believe that this is a misspelling of petrel blue, and that the term refers to the sea bird. However, the OED gives only this spelling. The term may originally have pertained to petrol-derived compounds such as paraffin, which is often coloured blue.

Adjective

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petrol blue

  1. (British) Of a greyish blue colour, tinted with green.

See also

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