http://hl7.org/fhir/color-rgb|5.0.0

{
  "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).",
  "compose" : null,
  "package" : "hl7.fhir.r5.core@5.0.0",
  "date" : null,
  "meta" : {
    "profile" : [ "http://hl7.org/fhir/StructureDefinition/shareablecodesystem" ],
    "lastUpdated" : "2023-03-26T15:21:02.749+11:00"
  },
  "publisher" : "FHIR Infrastructure",
  "jurisdiction" : [ {
    "coding" : [ {
      "code" : "001",
      "system" : "http://unstats.un.org/unsd/methods/m49/m49.htm",
      "display" : "World"
    } ]
  } ],
  "content" : "not-present",
  "name" : "ColorRGB",
  "copyright" : "[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.",
  "experimental" : false,
  "resourceType" : "CodeSystem",
  "title" : "RGB Values for Color",
  "supliment" : null,
  "extension" : [ {
    "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
    "valueCode" : "fhir"
  } ],
  "compositional" : true,
  "status" : "active",
  "id" : "22c7605f-51e2-596a-9a1e-2b1153cbf5b8",
  "url" : "http://hl7.org/fhir/color-rgb",
  "identifier" : [ {
    "value" : "urn:oid:2.16.840.1.113883.4.642.4.2121",
    "system" : "urn:ietf:rfc:3986"
  } ],
  "caseSensitive" : false,
  "version" : "5.0.0",
  "contact" : [ {
    "telecom" : [ {
      "value" : "http://hl7.org/fhir",
      "system" : "url"
    } ]
  } ]
}