Email platform implementation
Klaviyo email template design
A Klaviyo email template is the reusable design that campaigns and flow emails are built on. Designing it well saves time and keeps every email consistent with your brand. The aim is a master template with a header, footer and a set of reusable blocks for text, images, product displays and buttons, laid out to read well on a phone first, holding up in dark mode, using real text rather than text baked into images and including the unsubscribe link and business details every marketing email needs. Testing across devices and common email apps before use catches problems that only appear outside the editor.
This page covers the master template, blocks, mobile layout, dark mode, accessibility, product blocks, the footer and testing. Check Klaviyo's help for current editor features. LetGetGrow sets up and manages Klaviyo and Mailchimp, including flows, templates, integrations and migrations, with the scope, cost and timeline set out in a custom quotation.
Illustrative diagram
- Header — logo that works in dark mode
- Hero — image with live text
- Text — readable without zooming
- Product grid — handles long titles
- Button — large enough to tap
- Footer — unsubscribe and sender details
Blocks worth building
| Block | Use |
|---|---|
| Header | Logo and simple navigation |
| Hero | Main image and message |
| Text | Body copy in brand fonts with safe fallbacks |
| Product grid | Products from orders, carts or recommendations |
| Button | Clear call to action |
| Footer | Business details, preferences and unsubscribe |
Phone first
Many people read email on a phone. Design for a narrow screen first: a single column, readable text without zooming, buttons large enough to tap and images that scale. Check the preview on a real phone, not just the editor's mobile view.
Real text and accessibility
Words inside images cannot be read by screen readers, may not load when images are blocked and do not adapt to dark mode. Use live text for headlines and body copy, add meaningful alt text to images, keep enough contrast between text and background and make link text describe where it goes. These choices help every reader, not just those using assistive technology.
Dark mode
Some email apps change colours in dark mode. Logos with transparent backgrounds can disappear against dark backgrounds, and dark text on images can become unreadable. Test the template in dark mode and adjust logos and colours so the email still looks intended.
Designing a template
Brief
Brand, emails it must serve.
Output: Design brief
Design
Master layout and blocks.
Output: Approved design
Build
In Klaviyo's editor.
Output: Template
Test
Phones, apps, dark mode.
Output: Test results
Guide
How to use blocks.
Output: Usage notes
Example: a template for a tea brand
Illustrative example — not a client case study
Situation: A tea brand's emails are single large images with text inside.
- A new master template uses live text, brand colours with safe fallback fonts and a product grid block.
- The logo is redrawn with a background that works in dark mode.
- Test sends to phones and common email apps confirm layout and readability before any campaign uses it.
What this shows: Emails became readable everywhere and quicker to build. This example is illustrative.
Template checks
Layout
- Single column on phones
- Tap-sized buttons
Access
- Live text and alt text
- Enough contrast
Compliance
- Unsubscribe link
- Business details in footer
Product blocks
Flow emails often show products from an order or checkout. Design a product block that handles long titles, missing images and several items gracefully, and test it with real order data.
Fonts and fallbacks
Brand fonts do not display in every email app. Choose a fallback font that keeps a similar look and size, and check that headlines still fit when the fallback appears. Avoid tiny text; body copy should be comfortable to read on a phone without zooming.
Images
Keep image file sizes modest so emails load quickly on mobile data, and make sure each image still makes sense if it does not load, with alt text describing it. Product photos with consistent backgrounds and proportions make product grids look tidy.
Testing before use
Send test emails to phones and to the email apps your customers commonly use, in light and dark mode. Check spacing, buttons, links and the footer. Fix problems in the master template once rather than in every email.
A short usage guide
Write down which block to use for what, image sizes, maximum headline lengths and what not to change. A one-page guide keeps emails consistent as different people build them.
Questions about Klaviyo email template design
What is a Klaviyo email template?
The reusable design emails are built on.
Should templates be designed for phones?
Yes, phone first.
Why avoid text in images?
It is less accessible and breaks in dark mode.
What must the footer include?
Unsubscribe and sender details.
How should templates be tested?
On phones, common email apps and dark mode.
What blocks are useful?
Header, hero, text, product grid, button and footer.
Sources referenced
Platform features, guidance and rules change. We check the current versions before committing to an approach. This page is general information, not legal advice.
- Gmail Help: Email sender guidelines (opens in a new tab) — reviewed 2026-10-31
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