<?xml version="1.0" encoding="utf-8"?><mads xmlns="http://www.loc.gov/mads/" xmlns:mods="http://www.loc.gov/mods/v3" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.loc.gov/mads/
mads.xsd"><authority><topic authority="http://AATesaurus.cultura.gencat.cat/aat/getty_en">International Klein Blue</topic></authority><related type="broader"><topic>inorganic blue pigment</topic></related><variant type="other"><topic>IKB</topic></variant> <note xml:lang="en"><![CDATA[ International Klein Blue (IKB) is a powdery ultramarine pigment created by Yves Klein in 1956 and patented by the artist in 1960. He used the color, symbolic of purity of spirit, exclusively from 1957 on. ]]></note></mads>