A vibrant light blue colour, like that of the sky on a fine day. / (UK, slang, obsolete) Milk excessively diluted with water, or from which the cream was too closely skimmed.

A light blue color, with a tint of grey.

Of a light blue color, with a tint of grey

(transitive) To edit, especially to censor, written documents. / (politics, slang) To use a line-item veto.

A dark blue colour.

Of an Oxford blue colour.

(inorganic chemistry) An insoluble dark, bright blue pigment, ferric ferrocyanide (equivalent to ferrous ferricyanide), used in painting and dyeing, and as an antidote for certain kinds of heavy metal poisoning.

Of a rich blue colour, tinted with green.

A deep blue colour, like that of the sky on a clear day.

Of a deep blue colour, like that of the sky on a clear day.