In a similar vein as this question...

Are there any conventions or standards that recommend a color scheme for the colors of Ethernet keystone jacks?

colored jacks

  • I hope someone answers yes because I'm not aware of one and it would be really cool if there were one. Jul 1, 2015 at 17:03
  • There are, but only in specialized environments (i.e. hospital, military, etc.)
    – Ricky
    Jul 1, 2015 at 22:20
  • @RickyBeam, do you know the names of any such standards, or can you link to them?
    – cp.engr
    Jul 1, 2015 at 22:32
  • Sorry. I don't.
    – Ricky
    Jul 1, 2015 at 22:34
  • 1
    That's not really possible. We will always have such questions as there are many where the OP no longer uses SE sites. The first year we did this, we got around 1300 accepted answers from old questions, and the people answering really appreciate getting recognized. I do not really look at the questions and answers, only that there is a question with no accepted answers, and paste in the comment. If you ever find an answer, you are free to come back and answer it and accept your own answer.
    – Ron Maupin
    Jan 5, 2021 at 20:24

2 Answers 2


My personal experience is that we use whatever color matches the paint in the room its in, unless it is one of the following:

Red: Hospital Monitoring Equipment
Blue: Security Cameras
Green: Any separate LAN or VLAN connection (ie. radiology has a few of these)

I don't believe there is a specific standard for them.

Correction: as Comments state below talk to your AHJ

  • 1
    Many times, it may be up to the local Authority Having Jurisdiction. My company had a color scheme which we used everywhere until we ran into inspectors in some cities that each had their own color schemes. Despite any national or international standards, the AHJ always has final say.
    – Ron Maupin
    Jul 1, 2015 at 19:53
  • I would assume he is the AHJ in his network if he is the system admin. Jul 1, 2015 at 19:56
  • 3
    That would be an incorrect assumption which could get someone in a lot of trouble by having an entire building red-tagged as unfit for occupation until the problems are corrected. The local building inspector, fire marshal, etc. would be the AHJ. There are a lot of laws around cabling that need to be met.
    – Ron Maupin
    Jul 1, 2015 at 20:04
  • @ronmaupin, can you cite specific instances where an inspector would care about the jack color? Jul 1, 2015 at 23:57
  • 1
    @Mike Pennington, for instance, in Plano, TX, red is strictly reserved for lifeline services. I'm not completely sure of the definition, but we were not allowed to use red. There are a few other places in the over 200 cities and towns in the DFW Metroplex that have (or building officials claimed to have) various rules governing color coding of cables and jacks. I have often thought that some of the AHJ officials were just flexing as a show, but what are you going to do?
    – Ron Maupin
    Jul 2, 2015 at 2:55

Here is the standard I use across our WAN

We also use a color coding standard for the cables. - Blue cables for data - Yellow cables for Voice and phones - Green for Audio/Video (Televisions, cable boxes, etc.) - Purple for Wireless access points - Black for security cameras - Red is reserved for Fire systems and alarms

  • "Here is the standard I use across our WAN" - where? Or are you saying you use the same color code for the jacks and the cables?
    – cp.engr
    Aug 3, 2015 at 16:06
  • 1
    Cables, wall jacks and patch panels all have corresponding colors.
    – AJ Acevedo
    Aug 5, 2015 at 1:17

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.