The collection of named colors are available as a .csv download under the CC0 1.0 license.
The format is hexcode,name,votes
JSON feed of the latest 100 submissions:
https://colornames.org/fresh/json/
Returns:
[{"nameId":1944061,"hexCode":"4c72f2","name":"Roneria"},{"nameId":1944060,"hexCode":"7ce0ef","name":"Puffy"}, ... ]
JSON lookup of hex to color name:
https://colornames.org/search/json/?hex=FF0000
Returns:
{"hexCode":"ff0000","name":"Red"}
JSON request for a random color name:
https://colornames.org/random/json/
Returns:
{"hexCode":"91ae93","name":"Ashen Leaves"}