Use a colon after a complete sentence to introduce a list
Use a colon to introduce an explanation or clarification
Use a colon to introduce a quotation
Use a colon to introduce an example or examples
Use a colon between hours and minutes in time
Use a colon between chapter and verse in biblical references
Use a colon in ratios
Use a colon in titles and subtitles
Do not use a colon directly after a verb or preposition
Do not capitalize the first word after a colon unless it begins a proper noun or a complete sentence