topic Re: How to use Opacity in the Custom Module Color Picker in CMS Development

How to use Opacity in the Custom Module Color Picker

Stephanie-OG — Thu, 06 Sep 2018 20:15:41 GMT

I was about to post this as a question as it took me a while to figure out (). Since I couldn't find any documentation I figure I'll share for anyone who might look for this in the future.

EDIT: Opacity for a background element will apply to children as well so the below is great for text but not background colours... Any alternatives would be great!

EDIT NUMBER TWO: I've found the convert_rgb filter for HubL which answers my question:

<div style="background: rgba({{ widget_data.my_color.color|convert_rgb }}, .5)"></div>

In custom modules you can use a "Color" field which allows users to pick a colour and opacity.

If this field is named background_color, for example, it gives you the following snippets:

Colour: {{ module.background_colour.color }} with the output #c82929
Opacity: {{ module.background_colour.opacity }} with the output 32

In CSS, opacity takes values from 0.0 - 1.0 so I wasn't sure how to fit in the "32" value (one it got to 0.100 it didn't like that at all) so I finally figured I could use calc and math to divide the number by 100.

To use the above you can do the following:

.myClass {
 background-color: {{ module.background_colour.color }};
 opacity: calc({{ module.background_colour.opacity }} / 100);
}

And voilà!

Their own colour picker in a Rich Text module, for example, uses an RGBA output for opacity so it must work differently:

Stephanie O'Gay Garcia
HubSpot Design / Development / Automation

Website | Contact

Re: How to use Opacity in the Custom Module Color Picker

tjoyce — Wed, 08 Aug 2018 12:05:17 GMT

@Stephanie-OG - Good find on the 'calc'!

I think these should work as well...

 
.myClass {     
      opacity: {{'0.'+bg if module.background_colour.opacity < 100 else '1'}};
      opacity: {{module.background_colour.opacity / 100}};
}

Re: How to use Opacity in the Custom Module Color Picker

Stephanie-OG — Wed, 08 Aug 2018 16:12:09 GMT

Thanks @tjoyce! Those both work too. The only problem now is that I want to use it for a background-color and using "opacity" dims the opacity for everything in my container (not just the background colour).

So RGBA would be great... maybe it's an Ideas forum suggestion?

Stephanie O'Gay Garcia
HubSpot Design / Development / Automation

Website | Contact

Re: How to use Opacity in the Custom Module Color Picker

tjoyce — Wed, 08 Aug 2018 16:40:30 GMT

@Stephanie-OG - I run into that dillema all the time, this is how I solve it -

Instead of:

<div class="wrapper">
  <div class="overlay">
    ..your content here
  </div>
</div>

I do this:

<div class="wrapper" style="position:relative">
  <div class="overlay" style="width:100%;height:100%;left:0;top:0;color:blue;opacity:0.5;"></div>
  <div class="my-content" style="width:100%;height:100%;left:0;top:0">
  ... my content here
  </div>  
</div>

Re: How to use Opacity in the Custom Module Color Picker

Stephanie-OG — Wed, 08 Aug 2018 19:49:08 GMT

Thanks! 🙂

Stephanie O'Gay Garcia
HubSpot Design / Development / Automation

Website | Contact

Re: How to use Opacity in the Custom Module Color Picker

dennisedson — Tue, 08 Jan 2019 16:41:39 GMT

not to ever contest @tjoyce, but you may need to add some z-index action to this and positions to the wrapper children 🙂

Re: How to use Opacity in the Custom Module Color Picker

MrCapp — Tue, 05 Mar 2019 22:02:53 GMT

I was stuggling with a similar issue and thanks to this post I ended up with a hybrid. I didn't want to add any code and wanted to change the background colour and have anoption for opacity. I found a way by combining a choice field with a number field. Thought I would share in case someone else finds it helpful.

The choice field adds the hex code
Convert to hex to RGB
Set opacity to equal the number field
Number field maxes out @ 99

<div class="text-row-wrapper" style="background-color: rgba({{ module.bg_colour|convert_rgb }}, .{{ module.number_field }});">

Re: How to use Opacity in the Custom Module Color Picker

johnsardanas — Fri, 06 Dec 2019 07:02:15 GMT

I know it's an old problem but here's what I did, I got the idea from calc CSS function that you used.

{% set opacity = {{module.content_backround_color.color|convert_rgb }} / 100 %}

background-color: rgba({{module.content_backround_color.color|convert_rgb }}, {{opacity}});

Re: How to use Opacity in the Custom Module Color Picker

Jsum — Fri, 24 Jan 2020 22:59:38 GMT

I wrote out a tutorial for this as well: https://community.hubspot.com/t5/CMS-Development/Creating-a-background-image-background-color-widget/m-p/272763/highlight/true#M12435

Re: How to use Opacity in the Custom Module Color Picker

Javieru — Mon, 21 Oct 2024 20:59:47 GMT

Awesome. I get it working with something like this

{% set button_bg = "rgba({{ theme.buttons.standard_button.background.color.color|convert_rgb }}, {{theme.buttons.standard_button.background.color.opacity}}%)" %}

But I have one question.
How can I prevent the user from leaving the opacity field empty?
It would be helpful if the default value is settled when the field empties.