---
type: "codesystem"
title: "RGB Values for Color"
codesystem: "color-rgb"
---
# RGB Values for Color

- **Official URL**: http://hl7.org/fhir/color-rgb
- **Status**: active
- **Name**: ColorRGB
- **Title**: RGB Values for Color
- **Publisher**: FHIR Infrastructure
- **Description**: 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 16million+ valid RGB codes (terminology servers will need code to support the RGB grammar).
- **Case Sensitive**: false
- **Content**: not-present

## CodeSystem XML



```xml
<?xml version="1.0" encoding="UTF-8"?>

<CodeSystem xmlns="http://hl7.org/fhir">
  <id value="color-rgb"/>
  <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-wg">
    <valueCode value="fhir"/>
  </extension>
  <extension url="http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status">
    <valueCode value="normative"/>
  </extension>
  <url value="http://hl7.org/fhir/color-rgb"/>
  <identifier>
    <system value="urn:ietf:rfc:3986"/>
    <value value="urn:oid:2.16.840.1.113883.4.642.4.2121"/>
  </identifier>
  <name value="ColorRGB"/>
  <title value="RGB Values for Color"/>
  <status value="active"/>
  <experimental value="false"/>
  <publisher value="FHIR Infrastructure"/>
  <contact>
    <telecom>
      <system value="url"/>
      <value value="http://hl7.org/fhir"/>
    </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 16million+ valid RGB codes (terminology servers will need code to support the RGB grammar)."/>
  <copyright value="[Copyright](https://www.w3.org/Consortium/Legal/ipr-notice) ©2022 World Wide Web Consortium. All Rights Reserved. This work is distributed under the [W3C® Software and Document License](https://www.w3.org/Consortium/Legal/copyright-software) in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."/>
  <caseSensitive value="false"/>
  <compositional value="true"/>
  <content value="not-present"/>
</CodeSystem>
```