HL7 Terminology (THO)
7.3.0 - Publication International flag

This page is part of the HL7 Terminology (v7.3.0: Release) based on FHIR (HL7® FHIR® Standard) v5.0.0. This is the current published version. For a full list of available versions, see the Directory of published versions

CodeSystem: RGB Values for Color

Official URL: http://terminology.hl7.org/CodeSystem/color-rgb Version: 20260630
Active as of 2026-07-27 Responsible: World Wide Web Consortium (W3C) Computable Name: ColorRGB
Other Identifiers: OID:2.16.840.1.113883.4.642.4.2121

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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).

This Code system is referenced in the definition of the following value sets:

This case-insensitive code system http://terminology.hl7.org/CodeSystem/color-rgb defines codes, but no codes are represented here

Description of the above table(s).