It is not recommend to change font colors, as during onboarding the Novi team worked closely with your organization to identify and dial in your brand, which allowed Novi to create a custom CSS for your website. CSS stands for cascading style sheets and applies to fonts, colors, spacing and other stylistic elements on your website.
This custom CSS means your site has a consistent and uniform look and feel on every page. As multiple people are editing the website, it helps to maintain your brand integrity.
Ultimately, admins can decide to allow text color changes but this must first be enabled in Association Settings. If utilized, it is highly recommend any font colors used are checked for contract levels (like this tool) to adhere to accessibility standards.