How do I change the color of an ion-item in a form when clicked on?

So I’m currently building a login form for my very first app and I can’t figure out how to change the color from the default ionic blue to another when an item in the form is clicked on to fill it out. Changing the color of the label changes it for all times and not just when clicked on.

Thank you in advance!

While this prose description might make perfect sense to you, the precise code you’re using to “chang[ing] the color of the label” is crucial for anybody trying to help you to meet you halfway.