Icon class icon_class fas fa-quote-left icon_class_computed fas fa-quote-left Related content Calculate wavelengths from frequencies and compare EM regions in a table Source Wikipedia Copyright information Text from Wikipedia and Wiktionary web pages quoted for educational purposes is subject to the Wikipedia Creative Commons Attribution ShareAlike Licence Snippet kind INFO Keywords visible light Previous snippet Full quote Various sources define visible light as narrowly as 420–680 nm to as broadly as 380–800 nm. URL https://en.wikipedia.org/wiki/Light Next snippet Related snippets Related snippets (backlinks) Under ideal laboratory conditions, people can see infrared up to at least 1050 nm; children and young adults may perceive ultraviolet wavelengths down to about 310–313 nm. Visit also Visit also (backlinks) Flags