JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
We believe that if one user has a question, there could be more users who may have the same question. This is why many of our support forum threads are public and available to be searched and viewed. If you’d like help immediately, feel free to search for a similar question, or submit your question or concern.
You can change color of your form text and labels by injecting custom CSS:
You can also change it inside of Form Builder by selecting Preferences option. Then select Form Styles tab and change Font color.
You can also change it inside of Form Designer.
Hope this will help. Let us know if you need further assistance.