Dark Mode in Email Signatures

Many email clients now support dark mode, which can affect how your signatures appear.

How Dark Mode Works

Email clients may automatically invert colors, change backgrounds, or swap light/dark text in dark mode. Each client handles this differently.

Best Practices

• Use transparent PNG logos when possible
• Avoid pure white (#ffffff) backgrounds on images
• Test with both light and dark backgrounds
• Use SigStudio's preview tool to check dark mode rendering

Tips for Better Dark Mode

Consider using slightly off-white backgrounds on image containers so they don't blend into dark mode backgrounds. Test your signature in Outlook, Gmail, and Apple Mail dark modes.