Picture this: your carefully branded email campaign lands in a subscriber’s inbox with dark mode turned on. Your brand colors have shifted to tones you’d never approve, your logo sits inside a white box, and your headline is barely legible. The layout is broken on mobile, and the email is truncated in Gmail. You didn’t know, because it looked perfect in your builder’s preview and the email clients you tested with.

Email services and builders are more sophisticated and user-friendly than ever. However, many offer no warning or guidance about how rendering differs across today’s major email clients. As a result, marketers generally encounter two types of builders.

The first type constrains layout and design options to help ensure emails render consistently and as intended across all major email clients. The drawback is that these builders limit how much of your unique brand identity can come through. Many companies think they‘re outdated or lacking in features, so they look for solutions that make it easier to create on-brand, responsive emails without coding or design help.

The second type offers more customization, including mobile responsive layouts, custom fonts, background images, and more. The problem is that commonly used email clients don’t interpret and render code in a standardized way. Browser-based clients differ from their app counterparts, app versions differ from one another, and so on. These inconsistencies can cause issues such as:

• Background images disappearing
• Webfonts not rendering
• Broken mobile responsiveness
• Truncated emails
• Incorrect rendering of tables
• Animated GIFs not playing or rendering correctly

Some of these issues can be bypassed through heavy use of custom foreground images, but this introduces other problems with file size, load time, and accessibility. It also adds cost and slows deployment because more graphic design assistance is required. Alternatively, if a less specialized employee is creating their own assets using AI tools or Canva, your brand's visual integrity will almost certainly degrade.

Dark Mode, the Newer Elephant in the Room

If your company is intent on making its emails dark mode compliant, and it should be, all of these inconsistencies become more complicated to resolve. Here’s what you’re up against:

• Coded color values will be changed to off-brand tones, and different email clients will change them in different ways.
• If you use background images, overlaying text inverted by dark mode will fail accessibility contrast requirements.
• Irregularly shaped images saved as JPGs will appear with a white box around them in dark mode, while PNGs with transparency will generally product much larger file sizes if they incoporate complex imagery like photographs. This requires more aggressive compression, such as dithering, or lower-resolution images that can look blurry or pixelated.
• Graphics like icons may disappear or have very low contrast against the background.

Testing Does Not Solve a Critical Problem

There are services that let you preview how your emails will render across a variety of email clients in light and dark mode. However, they can be costly, time-consuming, and frustrating to use, and they generally don’t offer solutions to the problems they reveal. That means your email person needs to understand all the constraints ahead of time. They should also have a professional graphic design background and some coding experience.

Most experienced designers and coders, however, don’t understand the wide range of variables involved. No amount of research can prepare you to avoid every potential issue. In my experience, learning to account and solve for these problems takes one to three years of dedicated training, and that training can only come from real-world experience. This means emails designed by inexperienced staff can take two to three times as long to troubleshoot and deploy, and while those staff are on the learning curve, part of your audience won’t receive emails as intended.

In most companies, awareness of these issues is very limited. Staff building emails may only preview and test across a couple of clients and platforms. Even experienced staff dedicated to email may not be designing with these challenges in mind, especially those related to dark mode.

A Quick Self-Check

Want to see where you stand? Open your most recent campaign in the Gmail and Outlook apps on your phone and desktop, then switch to dark mode and look at the email(s) again. Are your colors, logo, and headlines still on-brand? Is any text hard to read? Does the layout hold together? If anything looks off, keep in mind that you’ve checked only a few of the many client and device combinations your subscribers use.

The Solution is Compromise

For someone inexperienced, creating emails that fully satisfy brand expectations, render correctly across all major email clients, and meet accessibility and dark mode requirements can seem borderline impossible. And the more custom your emails are, the more difficult and time-consuming the task is likely to be.

The takeaway? Brand compliance in email is a negotiation of priorities, and there are three basic paths: put brand first, put consistency and ease first, or strike a balance between the two.

If your brand rules and expectations are inflexible, you’ll need to use more foreground images with headlines embedded in your established brand fonts. This approach has drawbacks, however, and each one adds time, cost, or risk:

• Accessibility devices can no longer read the text. To account for this, include any text embedded in an image in that image’s alt text.
• Avoid exporting text elements as images with transparency unless they have adequate contrast in both light and dark mode. Alternatively, add an outline the same color as the light mode background. This also applies to certain images with transparency, like icons.
• Embedded text scales with the image, so on mobile, headlines can shrink until they’re not much larger than paragraph text. And unlike HTML text, headlines embedded in an image won’t wrap, which may require separate desktop and mobile images with a show/hide function based on device type.
• Image-heavy emails that use show/hide by device type increase both HTML file size and image load time. Larger HTML files can lead to truncation in some email clients. Reducing load time without visible pixelation or other compression artifacts requires knowledge of ideal image file types and export settings.
• Heavier use of foreground images can undermine accessibility and defeat the purpose of dark mode, creating large, bright color blocks that negatively impact the user experience.

If your priorities are accessibility, absolute consistency across email clients, and ease of implementation, significant branding compromises will likely be necessary, and layout options will be limited. In this scenario, a set of best practices can guide a less experienced staff member, but they’re still likely to deploy emails that render incorrectly in some email clients.

The third path, a hybrid approach, is where years of dedicated expertise provide a significant advantage. An email professional who has solved these problems repeatedly can assess your priorities and strike the ideal balance between brand aesthetics, accessibility, dark mode compliance, and relatively consistent, error-free rendering across all major email clients.

Eliminate the Guesswork and Frustration

I’ll be honest with you. If I had known how much time and energy it would take to understand all the variables in play and overcome these issues, email would not have become part of our offering. Over time, however, by facing a wide variety of challenges, we’ve developed the knowledge and best practices needed to provide value and consistent results.

Whether your emails are off-brand, render inconsistently, or look outdated, Apicem can help. We can work in your preferred email builder or, if it’s too constrained to meet your expectations, suggest a better-suited alternative.

We can handle all of the design and copywriting for you, or set up HTML and/or Canva design templates with instructions that enable in-house staff to deploy trouble-free, on-brand emails. We can also help with nurture, cart abandonment, and remarketing strategies that optimize conversion and increase customer lifetime value.

If you have any uncertainty or concerns about the quality and consistency of your email campaigns, send us a message. We’d love to help!