Binary package “libghc-colour-doc” in ubuntu bionic

A model for human colour/color perception; documentation

 This package provides a data type for colours and transparency. Colours can be
 blended and composed. Various colour spaces are supported. A module of colour
 names (Data.Colour.Names) is provided.
 This package provides the documentation for a library for the Haskell
 programming language.
 See for more information on Haskell.