I use Studio Code for that. 
Not sure why Iām getting errors itās just odd.
Noā¦ you are using the dashboard. Itās very apparent from the image you posted.
Either because itās still there or because itās lying to you.
I canāt see your code, and I doubt itās lying. 
This is what the developers tool tells me:
action:
- service: light.turn_on
entity_id: light.outside_front_lights
data_template:
hs_color: >
- 30
- 100
brightness: 80
mode: single
Hereās a new error
Error while executing automation automation.98_turn_on_outside_lights: Error rendering data template: UndefinedError: None has no element 0
Not sure what code you meanā¦ the automation above has the code in it.
Not the end of the world apparently my scope of knowledge isnāt where it needs to be because Iām not understanding some things hereā¦ No big deal. Work calls so I must go 
Just like thatā¦ from my office desk I finally figured it out and it works Thanks @Hellis81 for your input!
action:
- service: light.turn_on
entity_id: light.outside_front_lights
data_template:
xy_color: [0.41, "0.{{ range(1, 100000)|random }}"]
brightness: 80
i am trying to make random light buttonsā¦like a scene, but random colorsā¦ i cant figure out how to do itā¦ ā¦ I am sure it is simple enough, but what are you supposed to do with this?.. make an automation?.. a script?..a scene?.. paste it somewhere?..arrrrgggg! ā¦lolā¦
There is a full example in the first response.
If that is not enough to make it work for you, show us what youāve got and someone will help.
i dont know where to start?.. i see the examplesā¦ i just dont know what to do with them.
if i try to paste it into developer tools/services i get a āThe UI does not support templates, you can still use the YAML editor.āā¦odd because i am in a yaml editorā¦ but i digressā¦
if i paste it into automations i get āMessage malformed: required key not provided @ data[ātriggerā]āā¦
if i try to make it a script i get " Message malformed: expected a dictionary"
okie dokiesā¦ a little furtherā¦ :)ā¦ this finally worked in Developer Tools/Servicesā¦ i couldnt get the first example to workā¦ im sure i am just missing the thing right in front of my faceā¦lolā¦here be meh code
service: light.turn_on
target:
entity_id: light.study_1_2
data:
color_name: ā{{ [ālawngreenā, ābluevioletā, āmagentaā, āyellowā, āredā, āblueā, ālimeā, āmagnetaā, āpurpleā] | random }}ā
ā¦what do i do with it now?.. i get errors when i try to save it as a script(Message malformed: extra keys not allowed @ data[āserviceā]) and as an automation I get the same errorā¦ and i guess for a whole room of different random color lights I would need to repeat it with the entities changedā¦?.. something like that?
thank you:)
Use the GUI to create a light turn on, then switch to yaml mode and copy paste lines from your code here to the yaml editor.
Since you didnāt use the prefromatted text button you will need to replace all the quotes with proper quotes.
okā¦ now i got some more gravy :)ā¦ and a preformatted text thinga-ma-bob :)ā¦ it worksā¦yay :)ā¦ it will change both of those lights to the same colorā¦
still dont know what to do with itā¦ still kinda new with home assistantā¦ im still learning the nuts and bolts :)ā¦when you say ācreate a light turn onāā¦do you mean the stuff tn Developer Tools/Servicesā¦ or create a button?..
what can i do to make it take that random list of colors and apply it to a room where each bulbs gets a random color?.. ā¦In my setup, light.study has 7 lightsā¦i want them all to have random colors with a clickā¦i know once i figure out how to do it it will be easy enough and trigger-able a million waysā¦ I have a good deal of automations ( seems to be growing everyday) and a decent amount of integrations in my set upā¦ use scripts for a handful of thingsā¦ this random-color-lights-for-a-room thing has been eluding meā¦lolā¦
service: light.turn_on
data:
color_name: "{{ ['lawngreen', 'blueviolet', 'magenta', 'yellow', 'red', 'blue', 'lime', 'magneta', 'purple'] | random }}"
target:
device_id:
- b9cb7d06ee98e3477ea1006fd75afcdd
- a66d6669d3548bee990a1d1f0e687510
Open a new script and add call service with light turn on:
In upper right corner, three dots, yaml mode:
alias: New Script
sequence:
- service: light.turn_on
data: {}
mode: single
Now lets take the parts you have and add them to the automation:
alias: New Script
sequence:
- service: light.turn_on
target:
entity_id: light.study_1_2
data:
color_name: "{{ ['lawngreen', 'blueviolet', 'magenta', 'yellow', 'red', 'blue', 'lime', 'magneta', 'purple'] | random }}"
This should set study_1_2 to a random color.
If you want all entities to be the same color then list them:
target:
entity_id:
- light.study_1_2
- light.study_1_3
- light.study_1_4
If you want each light to be a different color then you need to duplicate the call service part:
alias: New Script
sequence:
- service: light.turn_on
target:
entity_id: light.study_1_2
data:
color_name: "{{ ['lawngreen', 'blueviolet', 'magenta', 'yellow', 'red', 'blue', 'lime', 'magneta', 'purple'] | random }}"
- service: light.turn_on
target:
entity_id: light.study_1_3
data:
color_name: "{{ ['lawngreen', 'blueviolet', 'magenta', 'yellow', 'red', 'blue', 'lime', 'magneta', 'purple'] | random }}"
- service: light.turn_on
target:
entity_id: light.study_1_4
data:
color_name: "{{ ['lawngreen', 'blueviolet', 'magenta', 'yellow', 'red', 'blue', 'lime', 'magneta', 'purple'] | random }}"
Running this script should give you either all same color or different color on each light.
Lastly. Iām not sure the method of color name is the best if you want random colors.
I would prefer RGB or hue and saturation.
In my opinion Hue and saturation is easier to randomize.
So instead of data with color name, replace it with:
data:
hs_color:
- '{{ range(0,360) | random }}'
- '{{ range(0,100) | random }}'
You need to try it yourself but on my Shelly bulbs a saturation of less than 60 (of 100) is more or less white. So having it randomize from 0-100 then chances are that you will have a lot of white lights.
You could make that range
data:
hs_color:
- '{{ range(0,360) | random }}'
- '{{ range(60,100) | random }}'
Or if you only want full saturated colors then fix it to 100.
data:
hs_color:
- '{{ range(0,360) | random }}'
- 100
Hereās just an exampleā¦this is what I use to turn on random colors with my front outside lightsā¦
- service: light.turn_on
target:
entity_id: light.outside_front_lights
data:
hs_color: >
[ {{ range(10,300) | random }}, 100 ]
default:
- service: light.turn_off
entity_id: light.outside_front_lights
Hope it helps!
duuuuude,ā¦ i knew itā¦thank you!..
it was totally the simplest thing :)ā¦ it was like the first step where you ācalled serviceā as an optionā¦that is what i was missingā¦ the rest was downhill! :)ā¦ boom!.. i owe you a piece of delicious cake, good sir!
just wanted to say thank you again, friends! ā¦ and wanted to show you what you helped me build this is one areaā¦the final part was that random button :)ā¦lolā¦ i have already created all the other ones too
ahhhhā¦Home Assistantā¦ makes the complicated stuff easyā¦and the easy stuff complicatedā¦lolā¦ love itā¦ boom
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Thanks for sharing, so awesome!!
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I donāt know what iām doing wrong. I want to have random colors every 3mins for when me and my kids watch movies. Any help is appreciated
Something new to tryā¦
Seemed to be an appropriate place to put this
Thanks everyone. Was able to create some simple yet effective color automations thanks to this thread.
alias: Roll Bedroom
variables:
control_entity_state: "{{ is_state('input_boolean.onecolorrule', 'on') }}"
apply_brightness: "{{ is_state('input_boolean.apply_custom_brightness', 'on') }}"
custom_brightness: "{{ states('input_number.custom_brightness_level') | int }}"
bulb_ids:
- light.wiz_rgbw_tunable_d33748
- light.wiz_rgbw_tunable_d30740
- light.wiz_rgbw_tunable_3e921e
- light.wiz_rgbw_tunable_d30090
- light.wiz_rgbw_tunable_d2f110
color_list:
- Aqua
- Aquamarine
- Brown
- CadetBlue
- Chartreuse
- Chocolate
- Coral
- Crimson
- Cyan
- DeepPink
- DeepSkyBlue
- DodgerBlue
- FireBrick
- ForestGreen
- Fuchsia
- Gold
- GoldenRod
- Green
- GreenYellow
- HotPink
- IndianRed
- Indigo
- Khaki
- LawnGreen
- LemonChiffon
- LightCoral
- LightSalmon
- Lime
- LimeGreen
- Magenta
- Maroon
- MediumBlue
- MidnightBlue
- Navy
- OldLace
- Olive
- OliveDrab
- Orange
- OrangeRed
- Orchid
- PaleGoldenRod
- PaleGreen
- PaleTurquoise
- PaleVioletRed
- PapayaWhip
- PeachPuff
- Peru
- Pink
- Plum
- Purple
- Red
- RosyBrown
- RoyalBlue
- SaddleBrown
- Salmon
- SandyBrown
- SeaGreen
- Sienna
- SkyBlue
- Tan
- Teal
- Tomato
- Turquoise
- Violet
- Wheat
- Yellow
- YellowGreen
sequence:
- choose:
- conditions:
- condition: template
value_template: "{{ control_entity_state }}"
sequence:
- variables:
chosen_color: "{{ color_list | random }}"
- service: input_text.set_value
target:
entity_id: input_text.last_requested_color
data:
value: "{{ chosen_color }}"
- repeat:
count: "{{ bulb_ids | length }}"
sequence:
- choose:
- conditions:
- condition: template
value_template: "{{ apply_brightness }}"
sequence:
- service: light.turn_on
target:
entity_id: "{{ bulb_ids[repeat.index - 1] }}"
data:
color_name: "{{ chosen_color }}"
brightness: "{{ custom_brightness }}"
default:
- service: light.turn_on
target:
entity_id: "{{ bulb_ids[repeat.index - 1] }}"
data:
color_name: "{{ chosen_color }}"
default:
- repeat:
count: "{{ bulb_ids | length }}"
sequence:
- choose:
- conditions:
- condition: template
value_template: "{{ apply_brightness }}"
sequence:
- service: light.turn_on
target:
entity_id: "{{ bulb_ids[repeat.index - 1] }}"
data:
color_name: "{{ color_list | random }}"
brightness: "{{ custom_brightness }}"
default:
- service: light.turn_on
target:
entity_id: "{{ bulb_ids[repeat.index - 1] }}"
data:
color_name: "{{ color_list | random }}"
mode: restart
icon: mdi:dice-multiple
New script lists the last color rolled (when one color rule is on), one color rule changes all bulbs to a single random color vs. each bulb to a distinct random color. If apply brightness is toggled on, the brightness level of all bulbs are set when the colors are applied.
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