It’s 3 a.m., and you can’t sleep. Without turning on a light, you grab your mobile phone and start flipping through your emails. The glaring white light you see during the day is no longer there — your phone has switched to Dark Mode.


This article will explore all things Dark Mode, including: 

  • What is Dark Mode and why is it so popular?
  • What does Dark Mode do to emails and why does it matter?
  • How do I keep my logo from disappearing in Dark Mode?
  • How can I optimize my emails for Dark Mode?

Which will give you the knowledge you need to make sure your emails look great when viewed in Dark Mode.


What Is Dark Mode and Why Is It So Popular?

“Dark Mode inverts the colors on your device to decrease the amount of light on your screen, most commonly, inverting a white background and black text to a black background with white text. The benefit of Dark Mode is the ease of strain on your eyes, especially at night or in dark conditions.”  
-- Campaign Monitor

In 2018, Apple added Dark Mode to Apple Mail on desktop, following it up with iOS the following year and the other email giants have followed in their footsteps; Gmail and Outlook (Outlook app, Outlook 2019, and You can also find it on social apps like Twitter, Slack, and Facebook Messenger.

Why is it so popular? Users simply like the calming view of a dark screen with white text versus having their face illuminated by a white screen, especially when around other people. In addition, Dark Mode is speculated to help people who have a sensitivity to light or are prone to migraines. It can also help preserve battery power. 


Which Email Clients Support Dark Mode?


What Does Dark Mode Do to Emails?

I think everyone could agree when it comes to email … nothing is easy. This definitely includes how the various email clients display your email when in Dark Mode. With three types currently identified, let’s explore how they affect your emails:

No Color Changes.

There’s no impact on how your email is rendered. The email will look exactly the same in light mode and dark mode. Supported Email Clients: Apple Mail, iPhone Mail, iPad Mail,

Partial Color Invert.

Only detects areas with light backgrounds and inverts them so the light backgrounds are dark while the dark text becomes light. The email clients will generally leave areas that already have a dark background alone, resulting in a fully dark mode design. Supported Email Clients:, Outlook 2019 (Mac OS), Outlook App (iOS and Android), Gmail App (Android)

Full Color Invert.

This is the most invasive color scheme. Not only inverts the areas with light backgrounds, but also impacts dark backgrounds. The light backgrounds have been converted to dark versions of the original colors. And text areas that previously had a dark background with light text are now light with dark text. Supported Email Clients: Outlook 2019 (Windows) and Gmail App (iOS)

Now let’s see how your email would look in each of these types:

Email- Dark Mode for email marketing- BLOG- Aug2021

Why Does This Matter?

Making sure your logo is recognizable should be a top priority, along with displaying legible text. If your recipients can’t easily read your email or recognize who it’s from, they will ignore it, delete it, or mark it as spam — all actions that will negatively impact your email deliverability.

Where Do You Start?

Not all emails look bad in Dark Mode. The easiest way to find out how yours will look is to view your email through a Partial Color Invert and a Full Color Invert email client like (on desktop) and Gmail on iOS. You can also use email testing platforms like Email on Acid or Litmus. You might find you don’t need to do anything at all.

What Happened to My Logo?

A ‘disappearing logo’ is the number one complaint we hear when working with clients. This ‘disappearing logo’ happens when you have a logo with white letters on a black background (the black background is inverted to white and everything blends together) or a logo with black letters on a white background (the white background is inverted to black and everything blends together). Either way, your logo is unrecognizable. What can you do?


Email -  Dark Mode for email marketing- Logo - Aug 2021



3 Options for Updating Your Logo

1.) Make a banner. Instead of placing your logo centered at the top of your email with a background color, create that entire area as a single banner image. Traditionally, these banners are 600px x 100px (depending on the width of your email and the height of your logo).

Email- Dark Mode - Aug 2021

Email - Dark Mode- Background Color

2.) Add a background color. Adding a background color is a very common method of adding a background color to your logo that matches the background color in your email.​

Email -Dark Mode  Outline Color - Aug2021

3.) Add a white outline. This method can be cringeworthy to your brand specialists as you add a 1px or 2px stroke to the outside of your black logo and/or text. However, it will only be visible to those viewing the logo in Dark Mode.

Darkmode outline



5 Steps to Optimize Your Emails for Dark Mode

1.) Use transparent dividers. When creating your dividers, try to avoid using a background color. Instead, make them transparent. This will ensure your email will look as intended when viewed in Dark Mode.

Email- Divider- Aug 2021

2.) Update social media icons. These often are dark in color and located in the footer of your email, where they can get lost when viewed in Dark Mode. From the example below, you can see the three different ways these icons can be altered — a white background, as a transparent PNG, and with the stroke around it. We recommend adding a 2px stroke.

Email Dark Mode Social1

Email Dark Mode - Social 2

3.) Use transparent images. The great thing about using a transparent image (one that doesn’t have a colored or white background) is it can be placed on just about any background color without having to worry about conflicts. However, you do need to be careful with images or icons that are black (see #2 above).

Email Dark Mode - Aug 2021

4.) Send a plain-text email. I wouldn’t be doing my due diligence if I didn’t mention sending plain-text emails. By default, these are black text on a white background and seamlessly transition into Dark Mode.

5.) Target Dark Mode users. If you feel comfortable digging into the CSS of your email, then adding in your own Dark Mode overrides will help you control how your email is viewed. Well, mostly. The Gmail App (iOS and Android) as well as Outlook 2019 (Windows) will ignore these styles. For detailed information, check out this Litmus article.



Final Thoughts

Dark Mode for email is wildly popular and will only keep growing as new email clients are added. While there are some challenges, you can be confident that through testing and some updated creative, your emails will look fantastic in either mode (light or dark). 

Thank you to Litmus for all the research on Dark Mode used to create this blog.  And thank you Nicole Merlin for the template.