# RGB format error

**URL:** <https://discourse.nodered.org/t/rgb-format-error/39514>\
**Category:** General\
**Created:** [21 January 2021 21:27 UTC](https://discourse.nodered.org/t/rgb-format-error/39514 "2021-01-21T21:27:57Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![jeremy8810](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/jeremy8810/32/17182_2.png) [@jeremy8810](https://discourse.nodered.org/u/jeremy8810)\
**Post date:** [21 January 2021 21:27 UTC](https://discourse.nodered.org/t/rgb-format-error/39514/1 "2021-01-21T21:27:58Z")

</div>

Hi Guys,

I've got this _probably_ noob question. But I can't find how to get this format rigth.

I need an output of: **rgb:255,255,255** where the values are variables.

This is my code now:

```auto
var red = flow.get("red");
var green = flow.get("green");
var blue = flow.get("blue");

msg.payload = {
    
    "selector": "label:Ledstrip",
    "power": "on",
    "color": {"rgb": [red,green,blue] },
    "duration": 5,
    "infrared": 1
}

return msg;

```

Which gives an output of:

```auto
color:
	rgb:
		0:255
		1:255
		2:000

```

How can I get this in one line comma-seperated?

---

<div class="post-metadata">

**Author:** ![Steve-Mcl](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/steve-mcl/32/4826_2.png) [@Steve-Mcl](https://discourse.nodered.org/u/Steve-Mcl)\
**Post date:** [21 January 2021 21:33 UTC](https://discourse.nodered.org/t/rgb-format-error/39514/2 "2021-01-21T21:33:19Z")

</div>

> [@jeremy8810](#):
>
> I need an output of: **rgb:255,255,255** where the values are variables.

Assuming you mean a string of `rgb:255,255,255`...

```auto
var red = flow.get("red");
var green = flow.get("green");
var blue = flow.get("blue");
var color = "rgb:" + [red,green,blue].join(",");

msg.payload = {
    
    "selector": "label:Ledstrip",
    "power": "on",
    "color": color,
    "duration": 5,
    "infrared": 1
}

```

---

<div class="post-metadata">

**Author:** ![jeremy8810](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/jeremy8810/32/17182_2.png) [@jeremy8810](https://discourse.nodered.org/u/jeremy8810)\
**Post date:** [21 January 2021 21:40 UTC](https://discourse.nodered.org/t/rgb-format-error/39514/3 "2021-01-21T21:40:23Z")

</div>

Exactly! Thanks!

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/1X/d073cd938eafa2e558d7c2cd59003b3ef4963033.png) [@system](https://discourse.nodered.org/u/system)\
**Post date:** [4 February 2021 21:40 UTC](https://discourse.nodered.org/t/rgb-format-error/39514/4 "2021-02-04T21:40:35Z")

</div>

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