How to set background color IONIC 4

Question

I having problems trying to change the background color in just one IONIC 4 (--type=angular) page. I am trying to add a class for the ion-content. In my html file I Have:

<ion-content class="fondologin">
...
</ion-content>

In my sass I have:

.fondologin{
    background-color: #111D12!important;
}

The background color is never changed. If I add --ion-background-color:#111D12; in variables.scss the background is successfully changed for every page but I just one to change the color in one page. How can I achieve this?

Answer 1

For some reason I solved it this way:

First of all I added --ion-background-color:#ffffff; in the variables.scss file inside theme folder.

In my Page scss I wrote:

ion-content{

    --ion-background-color:#111D12;
}

After that the background was successful set.

Answer 2

I am going to repost the top commented answer , with an extra explanation

ion-content{
    --ion-background-color:#111D12;
}

Starting from ionic 4, Ionic component implements the concept of shadowDOM, and the old method of finding css selectors in the component that implements shadowDOM no longer works

As such, any modification can only be made if you change the variable that the component references

for example, if ion content references

--ion-background-color: #ffffff

The only way you can modify the background color is by doing this in your css file

ion-content{
    --ion-background-color:#111D12;
}

Answer 3

As of March 2020, using Ionic 5, the following is the only solution that seems to work without interfering with the background color of other elements. Place the following code in variables.scss file:

WORKING SOLUTION:

ion-content {
  --background: var(--ion-color-primary); // Replace this with color of your choice
}

The following solutions don't seem to work properly in Ionic 5.

Example 1:

ion-content {
  --ion-background-color: var(--ion-color-primary);
}

ISSUE FACED: Using the above code also changes the background color of List Items, Ionic Cards, etc. to primary color. So this makes them look ugly!

Example 2:

ion-content {
  background-color: var(--ion-color-primary);
}

ISSUE FACED: Using the above doesn't apply the background color at all!

Example 3:

ion-content {
  background: var(--ion-color-primary) !important;
}

ISSUE FACED: Using the above doesn't apply the background color at all!

Answer 4

You can use like this...working good on my page.

ion-content{
    --background: #fff url('../../assets/imgs/intro.png') no-repeat center center / cover;
}

I hope it helps you :)

Answer 5

Also works in android deploy, If you need transparency in your background. You must setup like this way, i tried another way but doesn't work, only this way works for me.

ion-content {
  --background: rgba(0, 255, 0, 0.5);
}

Answer 6

In My Variables.scss file I write this code and then it applies in every file.

 ion-content{
    --background:#f9f9f9;
 }

Answer 7

Try this.

ion-content{
background-color:  #000000(use your color here) !important;
}

and let me know it is working for you or not

Answer 8

It might be you CSS selector that is not enough acurate.

Try this :

ion-content.fondologin{
    background-color: #111D12!important;
}

If it is still not working, then inspect your ion-content element and try to find your CSS, and which property or other selector is overriding it

Answer 9

Try this one:

    :host {
      ion-content {
        ion-background-color: #d5ffd5;
      }
    }

//Or 

 page-name{
      ion-content {
        ion-background-color: #d5ffd5;
      }
    }

Answer 10

For changing the background on only one page:

ion-content{
--ion-background-color:  #00ABE1 !important;
}

Do not forget the !important or it might not work.

Answer 11

You can also use a different approach. Rather than dealing with the ion-content background directly, just wrap what is inside of the ion-content and apply the background to the wrapper itself. Example:

Component.html

<ion-content>
<section class="wrapper">
 ...
 </section>
</ion-content>

Component.scss

ion-content .wrapper {
min-height: 100%;
background: #EBEBEB;
padding-buttom: 10px;
}

Answer 12

<IonContent color="primary" >   </IonContent>

you can also use "primary", "secondary", "tertiary", "success", "warning", "danger", "light", "medium", and "dark".

For adding additional color , please check https://ionicframework.com/docs/theming/colors

Answer 13

I have the same problem on Ionic 5

I use this solution based on other answers

in template:

<ion-content class="wrapper">
...
</ion-content>

in global.scss:

:root {
    --ion-bg-color: #f5f6fa;
}

ion-content.wrapper {
    --background: var(--ion-bg-color) !important;
}

or more simple:

ion-content {
    --background: #f5f6fa !important;
}

I also use this post: https://developer.mozilla.org/en-US/docs/Web/CSS/Using_CSS_custom_properties