change the color of an input by code

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,
1

Good afternoon,
I am trying to change the color of my input by means of code since I have a condition and I want that if it is not fulfilled the input of another color different red is put but I do not know how to achieve it, can you help me?

2

Does this help?

https://www.wix.com/velo/reference/$w/style/color

3

The way it comes there is just to change the color of the text and I am looking to change the color of an input
How can I do it?

4

Ok, how about this?