<?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">color wheels</topic></authority><related type="broader"><topic>color charts</topic></related><variant type="other"><topic>circles, colour</topic></variant><variant type="other"><topic>colour circles</topic></variant><variant type="other"><topic>colour wheel</topic></variant><variant type="other"><topic>wheels, colour</topic></variant><variant type="other"><topic>circles, color</topic></variant><variant type="other"><topic>color circles</topic></variant><variant type="other"><topic>color wheel</topic></variant><variant type="other"><topic>wheels, color</topic></variant> <note xml:lang="en"><![CDATA[ Circular charts with wedge-shaped segments of contiguous spectral hues comprising primary colors (e.g., red), secondary colors (e.g., orange), and tertiary colors (e.g., red-orange), with complementary colors (e.g., orange and blue) placed opposite one another. Color wheels may vary depending upon whether they are intended to illustrate mixing of colored pigments, color perception, or color psychology. ]]></note></mads>