There are several tools and methods available to check color contrast:
1. Online Contrast Checkers: Websites like Contrast Checker, WebAIM, and Contrast Ratio offer free tools where you can input your colors to see if they meet the required standards. 2. Browser Extensions: Tools like WAVE or Axe can be added to your browser to check contrast directly within your email design environment. 3. Design Software: Programs like Adobe Illustrator and Sketch have built-in tools to check contrast ratios.