This code system http://terminology.hl7.org/CodeSystem/container-cap defines the following codes:

CodeDisplayDefinition
red red capred cap.
yellow yellow capyellow cap.
dark-yellow dark yellow capdark yellow cap.
grey grey capgrey cap.
light-blue light blue caplight blue cap.
black black capblack cap.
green green capgreen cap.
light-green light green caplight green cap.
lavender lavender caplavender cap.
brown brown capbrown cap.
white white capwhite cap.
pink pink cappink cap.
 <status value="draft"/> <experimental value="false"/> <date value="2020-04-09T21:10:28+00:00"/> <publisher value="HL7 (FHIR Project)"/> <contact> <telecom> <system value="url"/> <value value="http://hl7.org/fhir"/> </telecom> <telecom> <system value="email"/> <value value="fhir@lists.hl7.org"/> </telecom> </contact> <description value="Color of the container cap."/> <caseSensitive value="true"/> <valueSet value="http://terminology.hl7.org/ValueSet/container-cap"/> <content value="complete"/> <concept> <code value="red"/> <display value="red cap"/> <definition value="red cap."/> </concept> <concept> <code value="yellow"/> <display value="yellow cap"/> <definition value="yellow cap."/> </concept> <concept> <code value="dark-yellow"/> <display value="dark yellow cap"/> <definition value="dark yellow cap."/> </concept> <concept> <code value="grey"/> <display value="grey cap"/> <definition value="grey cap."/> </concept> <concept> <code value="light-blue"/> <display value="light blue cap"/> <definition value="light blue cap."/> </concept> <concept> <code value="black"/> <display value="black cap"/> <definition value="black cap."/> </concept> <concept> <code value="green"/> <display value="green cap"/> <definition value="green cap."/> </concept> <concept> <code value="light-green"/> <display value="light green cap"/> <definition value="light green cap."/> </concept> <concept> <code value="lavender"/> <display value="lavender cap"/> <definition value="lavender cap."/> </concept> <concept> <code value="brown"/> <display value="brown cap"/> <definition value="brown cap."/> </concept> <concept> <code value="white"/> <display value="white cap"/> <definition value="white cap."/> </concept> <concept> <code value="pink"/> <display value="pink cap"/> <definition value="pink cap."/> </concept> </CodeSystem>