Light email
DripAgent
Your onboarding journey is ready
Review the next lifecycle email, confirm the activation trigger, and publish when the timing looks right.
Free HTML email tool
Free Email Dark Mode Previewer
An email dark mode previewer estimates how HTML email colors, backgrounds, logos, and CTA buttons may change when inbox clients apply dark color schemes. Use it to spot contrast, inversion, and logo risks before a campaign goes live.
Gmail simulationOutlook inversionLogo checksDark-mode CSS
Dark-mode QA
01
Compare light and dark-mode email previews
02
Check text contrast and CTA color resilience
03
Flag logo setups that disappear after inversion
04
Copy starter dark-mode CSS and QA notes
Email inputs
Gmail dark mode
DripAgent
Your onboarding journey is ready
Review the next lifecycle email, confirm the activation trigger, and publish when the timing looks right.
Gmail often applies partial inversion and may shift muted text colors.
QA checklist
Light contrast 17.2:1. Dark simulation contrast 7.3:1.
- Light-mode text contrast is readable for normal body copy.
- Gmail simulation keeps text contrast in a readable range.
- Logo setup has a workable dark-mode fallback.
- CTA color is less likely to wash out after dark-mode conversion.
<style>
@media (prefers-color-scheme: dark) {
.email-bg { background: #0b1020 !important; }
.email-card { background: #111827 !important; color: #f8fafc !important; }
.email-muted { color: #cbd5e1 !important; }
.email-cta { background: #14b8a6 !important; color: #ffffff !important; }
}
[data-ogsc] .email-bg { background: #0b1020 !important; }
[data-ogsc] .email-card { background: #111827 !important; color: #f8fafc !important; }
</style>Email dark mode FAQ
What is an email dark mode previewer?
An email dark mode previewer estimates how an HTML email may look when inbox clients apply dark color schemes, partial inversion, or forced contrast changes.
Why do email colors change in dark mode?
Email clients change colors to reduce brightness and improve readability. Some clients respect your CSS, while others invert backgrounds, text, images, or CTA colors.
Which email clients need dark mode testing?
Test Gmail, Apple Mail, Outlook, and any client that represents a meaningful share of your audience. Each client handles dark mode differently.
How do I fix email dark mode issues?
Use high-contrast colors, transparent images with dark-safe logo variants, client-specific dark mode CSS, and real inbox tests before sending.
Turn QA findings into lifecycle email workflows
DripAgent helps AI-built SaaS teams map product events into onboarding, activation, retention, and re-engagement email. Use this previewer before publishing the messages your users will see in every inbox theme.