Editing Color blindness (section)

===Color tasks===
{{main|Color task}}
Cole describes four color tasks, all of which are impeded to some degree by color blindness:<ref>{{cite journal |last1=Cole |first1=Barry L |title=The handicap of abnormal colour vision |journal=Clinical and Experimental Optometry |date=1972 |volume=55 |issue=8 |pages=304–310 |doi=10.1111/j.1444-0938.1972.tb06271.x}}</ref>
* '''Comparative'''&nbsp;– When multiple colors must be compared, such as with mixing paint
* '''Connotative'''&nbsp;– When colors are given an implicit meaning, such as red = stop
* '''Denotative''' – When identifying colors, for example by name, such as "where is the yellow ball?"
* '''Aesthetic''' – When colors look nice – or convey an emotional response – but do not carry explicit meaning

The following sections describe specific color tasks with which the color blind typically have difficulty.