What is the proper format for the logo?

Use an SVG for vector-based logos with a width of 120 pixels

We highly recommend using an SVG file when available, otherwise, a WebP with transparent background is preferred.

A width of about 120 pixels works best in the header for our theme.

Since the logo is included on every page, you'll want the smallest possible file size.

Convert your JPEG or PNG to WebP (files are ~26% smaller).

HubSpot automatically converts images to WebP based on the browser, but loading the files as WebP is a recommended best practice for SEO to avoid getting warnings about file size or next-gen image formats.

You can configure your logo, favicon, and brand colors in your HubSpot Settings under Account Defaults → Branding → My Brand Kit to set the default logo for your website.