'Can't find where background color it set in Laravel 9 system

In my Laravel9 system there are parts with background color I want to change. Like this: https://imgur.com/6IXNT0O and this: https://imgur.com/Ibz8hpG But I can not find where the color is defined. In one blade there is a row like this:

<div class="row padding-top-50 padding-bottom-50 background-color-primary text-white">

If I remove "background-color-primary " the background color is removed. But I can't find where the background-color is set to color value. Anybody know?



Solution 1:[1]

I found it in public/css/# app.css where I changed to 337ab7. So now I have all background parts in Moderate blue and it looks really nice. https://imgur.com/q6ap8YA Thanks guys!

Sources

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Source: Stack Overflow

Solution Source
Solution 1 raffodog