About: http://webisa.webdatacommons.org/146127266

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	If difference is a number showing how 'far apart' two colors are, tolerance is the meaning of the number.
http://www.w3.org/ns/prov#wasQuotedFrom	colorwiki.com