How to change the bootstrap primary color?

Bootstrap 5 (update 2021)

The method is still the same for Bootstrap 5.

https://codeply.com/p/iauLPArGqE

Bootstrap 4

To change the primary, or any of the theme colors in Bootstrap 4 SASS, set the appropriate variables before importing bootstrap.scss. This allows your custom scss to override the !default values...

$primary: purple;
$danger: red;

@import "bootstrap";

Demo: https://codeply.com/go/f5OmhIdre3


In some cases, you may want to set a new color from another existing Bootstrap variable. For this @import the functions and variables first so they can be referenced in the customizations...

/* import the necessary Bootstrap files */
@import "bootstrap/functions";
@import "bootstrap/variables";

$theme-colors: (
  primary: $purple
);

/* finally, import Bootstrap */
@import "bootstrap";

Demo: https://codeply.com/go/lobGxGgfZE


Also see: this answer, this answer or changing the button color in (CSS or SASS)


It's also possible to change the primary color with CSS only but it requires a lot of additional CSS since there are many -primary variations (btn-primary, alert-primary, bg-primary, text-primary, table-primary, border-primary, etc...) and some of these classes have slight colors variations on borders, hover, and active states. Therefore, if you must use CSS it's better to use target one component such as changing the primary button color.


There are two ways you can go to

http://getbootstrap.com/customize/

And change the color in this adjustments and download the bootstrap customized.

Or you can use sass with this version https://github.com/twbs/bootstrap-sass and import in your sass assets/stylesheets/_bootstrap.scss but before import this you can change the defaults variable colors

//== Colors
//
//## Gray and brand colors for use across Bootstrap.

$gray-base:              #000 !default;
$gray-darker:            lighten($gray-base, 13.5%) !default; // #222
$gray-dark:              lighten($gray-base, 20%) !default;   // #333
$gray:                   lighten($gray-base, 33.5%) !default; // #555
$gray-light:             lighten($gray-base, 46.7%) !default; // #777
$gray-lighter:           lighten($gray-base, 93.5%) !default; // #eee

$brand-primary:         darken(#428bca, 6.5%) !default; // #337ab7
$brand-success:         #5cb85c !default;
$brand-info:            #5bc0de !default;
$brand-warning:         #f0ad4e !default;
$brand-danger:          #d9534f !default;


//== Scaffolding
//
//## Settings for some of the most global styles.

//** Background color for `<body>`.
$body-bg:               #fff !default;
//** Global text color on `<body>`.
$text-color:            $gray-dark !default;

//** Global textual link color.
$link-color:            $brand-primary !default;
//** Link hover color set via `darken()` function.
$link-hover-color:      darken($link-color, 15%) !default;
//** Link hover decoration.
$link-hover-decoration: underline !default;

And compile the result


I've created this tool: https://lingtalfi.com/bootstrap4-color-generator, you simply put primary in the first field, then choose your color, and click generate.

Then copy the generated scss or css code, and paste it in a file named my-colors.scss or my-colors.css (or whatever name you want).

Once you compile the scss into css, you can include that css file AFTER the bootstrap CSS and you'll be good to go.

The whole process takes about 10 seconds if you get the gist of it, provided that the my-colors.scss file is already created and included in your head tag.

Note: this tool can be used to override bootstrap's default colors (primary, secondary, danger, ...), but you can also create custom colors if you want (blue, green, ternary, ...).

Note2: this tool was made to work with bootstrap 4 (i.e. not any subsequent version for now).