How do I change the color of an error message in CSS?
Just go to the Style tab and scroll to the bottom of the survey preview and click the link to access to HTML/CSS Editor. Copy and paste any of the below CSS code in the field on the Custom CSS tab to customize the error messages you would like to change!
What color should error messages be?
As usual, the red color is used for error message text. In some cases, yellow or orange colors are used as some resources state that red color is too stressful for users. In both cases, be sure that the error text is legible, with noticeable contrast against its background color.