HL7 Terminology (THO)
7.2.0 - Publication International flag

HL7 Terminology (THO), published by HL7 International - Vocabulary Work Group. This guide is not an authorized publication; it is the continuous build for version 7.2.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7/UTG/ and changes regularly. See the Directory of published versions

: RGB Values for Color

Active as of 2026-06-18

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<CodeSystem xmlns="http://hl7.org/fhir">
  <id value="color-rgb"/>
  <language value="en"/>
  <text>
    <status value="generated"/>
    <div xmlns="http://www.w3.org/1999/xhtml"><p class="res-header-id"><b>Generated Narrative: CodeSystem color-rgb</b></p><a name="color-rgb"> </a><a name="hccolor-rgb"> </a><p>This case-insensitive code system <code>http://terminology.hl7.org/CodeSystem/color-rgb</code> defines codes, but no codes are represented here</p></div>
  </text>
  <url value="http://terminology.hl7.org/CodeSystem/color-rgb"/>
  <identifier>
    <system value="urn:ietf:rfc:3986"/>
    <value value="urn:oid:2.16.840.1.113883.4.642.4.2121"/>
  </identifier>
  <version value="20260630"/>
  <name value="ColorRGB"/>
  <title value="RGB Values for Color"/>
  <status value="active"/>
  <experimental value="false"/>
  <date value="2026-06-18T18:31:46+00:00"/>
  <publisher value="World Wide Web Consortium (W3C)"/>
  <contact>
    <telecom>
      <system value="url"/>
      <value value="https://www.w3.org/"/>
    </telecom>
  </contact>
  <description
               value="RGB values for color. Valid codes are #RRGGBB where RR, GG, and BB are two letter hex codes, values 00..ff. Codes are case insensitive. This code system does not define the 16 million+ valid RGB codes (terminology servers will need code to support the RGB grammar)."/>
  <copyright
             value="[Copyright](https://www.w3.org/copyright/software-license-2023/) ©2026 World Wide Web Consortium. W3C® liability, trademark and permissive document license rules apply."/>
  <caseSensitive value="false"/>
  <compositional value="true"/>
  <content value="not-present"/>
</CodeSystem>