How to Design a Blog Featured Image in Canva

A blog featured image does double duty: it sits at the top of the article and becomes the preview card when the post is shared on social. Designing at the right size keeps it from being cropped in either place. This guide builds a clean 1200 by 630 image in Canva.

What you need

• A Canva account
• Your article title or a short version of it
• A background image, illustration, or solid brand color

Step 1: Use the 1200 by 630 size

Create a custom size of 1200 by 630 pixels. This is the standard Open Graph ratio that Facebook, LinkedIn, and most platforms use for link previews, so your image will not get awkwardly cropped when shared.

<meta property="og:image" content="https://example.com/featured.jpg" />
<meta property="og:image:width" content="1200" />
<meta property="og:image:height" content="630" />

Step 2: Set a background

Add a photo, a subtle gradient, or a solid brand color as the background. If you use a photo, dim it slightly with a dark overlay so any text on top stays readable.

Step 3: Add a readable title

Place the title in a bold font, large enough to read in a small feed preview. Keep important text away from the very edges, since some platforms trim a few pixels. A short subtitle can add context without clutter.

Step 4: Add a brand mark

Drop a small logo or site name in a corner so the image is clearly yours even when reshared without a caption. Keep it subtle so it does not fight the title.

Step 5: Export as an optimized JPG

Download as JPG to keep the file light, which matters for page speed. Aim for a file well under 200 KB. Name it clearly and upload it as the post's featured image.

Result

You have a 1200 by 630 featured image that looks sharp atop the article and renders perfectly as a social link preview. Reuse the template and your whole blog gains a consistent, professional look.