Change the Label Color of Vaadin TextField with Easy CSS Techniques

Learn how to customize the label color of Vaadin TextField components using CSS effectively and easily. Transform the look and feel of your application now!
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This video is based on the question https://stackoverflow.com/q/68458947/ asked by the user 'erikcox' ( https://stackoverflow.com/u/11460292/ ) and on the answer https://stackoverflow.com/a/68459686/ provided by the user 'Hawk' ( https://stackoverflow.com/u/9274948/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Changing the Label Color of Vaadin TextField

If you're working with Vaadin 14 and want to customize the appearance of your TextField component, you might have noticed that the label color changes to blue when focused. However, if you prefer a different color, you're in the right place! In this guide, we’ll explore how to change the TextField's label color in a couple of straightforward ways.

Understanding the Issue

You might have tried changing the label color via CSS by modifying the color property directly. For example, you might have attempted something like this:

[[See Video to Reveal this Text or Code Snippet]]

However, this approach typically only changes the color of the input text itself, and not the label. Let's delve deeper into how Vaadin manages styles and how we can change the label color specifically.

How to Change the TextField Label Color

Changing the label color of a Vaadin TextField can be done conveniently through two main approaches. Here’s a detailed explanation of each method to guide you through the process:

Method 1: Change the CSS Variable

Vaadin uses CSS variables to manage styles, which makes it very easy to customize components. In case you'd like to change the label color, you can update the --lumo-primary-text-color variable. Here are your options:

Specific TextField: If you want to change the color for just one TextField, you can set the variable directly like this:

[[See Video to Reveal this Text or Code Snippet]]

Class-based Customization: If you want this color change to apply to multiple TextFields, you can create a CSS class. For example, you can define a class called green-text:

[[See Video to Reveal this Text or Code Snippet]]

In your CSS file, you would include:

[[See Video to Reveal this Text or Code Snippet]]

Global Application: To apply this change to all TextFields in your application, simply add the following in your main CSS file:

[[See Video to Reveal this Text or Code Snippet]]

Method 2: Overloading CSS with Specific Rules

In some cases, you might want to have a more customized solution by specifying styles directly in the shadow DOM of the TextField component. Here’s how you can do it:

Import Your CSS File: Make sure to import your custom CSS for the vaadin-text-field like this:

[[See Video to Reveal this Text or Code Snippet]]

Create the CSS Rule in Your File: Inside your CSS file, define the styling for the label as follows:

[[See Video to Reveal this Text or Code Snippet]]

Conclusion

Changing the label color of a Vaadin TextField component is an important aspect of UI customization that enhances the user experience. By following the methods outlined above, you can easily implement your desired color adjustments. Whether you decide to change the CSS variable or use specific CSS rules, Vaadin provides you with the flexibility needed to craft a UI that meets your needs.

Feel free to explore these options and see how you can implement them in your project. Happy coding!