How to change the input text color on form fields?

I have a dark gray background on short text input fields, but the text itself is coming up as black.  Where do I go to change the input text color?  Sorry for such a basic question, but I am currently baffled. 

You can change the input color text using the following custom CSS code:

.form-textbox, .form-textarea, .form-dropdown {

    color: #fff;

}

While editing your form, go to the Form Designer and select the "CSS" tab. Paste the code above in the text area.

1 - Go to the Form Designer

Go to the CSS tab and paste the code as shown below:

You can clone my form (identical to your form) with this customization.

Adding the CSS codes that @luisvcsilva have provided should help you with your concern.

Here's a guide on how you can inject custom CSS codes to your form — How-to-Inject-Custom-CSS-Codes

If you have other questions or concerns, please feel free to let us know.