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Themes

Ionic provides several global variables that are used throughout components to change the default theme of an entire application. Application Colors are useful to change the look of most of the Ionic components, and Stepped Colors are used as variations in some of the Ionic components.

Application Colors

The application colors are used in multiple places in Ionic. These are useful for easily creating dark themes or themes that match a brand.

It is important to note that the background and text color variables also require a rgb variable to be set in rgb format. See The Alpha Problem for an explanation of why the rgb property is also needed.

Name Description
--ion-background-color Background color of entire app
--ion-background-color-rgb Background color of entire app, rgb format
--ion-text-color Text color of entire app
--ion-text-color-rgb Text color of entire app, rgb format
--ion-backdrop-color Color of the Backdrop component
--ion-overlay-background-color Background color of the overlays
--ion-border-color Border color
--ion-box-shadow-color Box shadow color
--ion-tab-bar-background Background of the Tab bar
--ion-tab-bar-background-focused Background of the focused Tab bar
--ion-tab-bar-border-color Border color of the Tab bar
--ion-tab-bar-color Color of the Tab bar
--ion-tab-bar-color-activated Color of the activated Tab
--ion-toolbar-background Background of the Toolbar
--ion-toolbar-border-color Border color of the Toolbar
--ion-toolbar-color Color of the components in the Toolbar
--ion-toolbar-color-activated Color of the activated components in the Toolbar
--ion-toolbar-color-unchecked Color of the unchecked components in the Toolbar
--ion-toolbar-color-checked Color of the checked components in the Toolbar
--ion-item-background Background of the Item
--ion-item-background-activated Background of the activated Item
--ion-item-border-color Border color of the Item
--ion-item-color Color of the components in the Item
--ion-placeholder-color Color of the placeholder in inputs

Stepped Colors

After exploring different ways to customize the Ionic theme, we found that we couldn't use just one background or text color. In order to imply importance and depth throughout the design, we need to use different shades of the background and text colors. To accommodate this pattern, we created stepped colors.

While updating the background (--ion-background-color) and text (--ion-text-color) variables will change the look of the app for most components, there are certain Ionic components where it may look off, or broken. This will be more apparent when applying a darker theme.

In some components we use a shade darker than the background or lighter than the text. For example, an item heading text may need to be #404040, which is a few shades lighter than our default text color. Meanwhile, the loading component background is a shade darker than white, using #f2f2f2. We use stepped colors in order to define these slight variations. It is important to update the stepped colors when updating the background or text color of an application.

By default, the Ionic stepped colors start at the default background color value #ffffff and mix with the text color value #000000 using an increasing percentage. The full list of stepped colors is shown in the generator below.

Stepped Color Generator

Create a custom background and text color theme for your app. Update the background or text color’s hex values below, then copy and paste the generated code directly into your Ionic project.

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