These guidelines are both for people in CNCF who design CNCF-branded web properties and also for people external to CNCF who want to use CNCF’s brand assets.
Consistent use of our design patterns, logo, and assets helps people easily identify CNCF-branded properties and protects our trademarks. It is important that marketing materials comply with these standards and use our approved assets correctly. Please note that any and all use of CNCF’s trademarks must comply with Linux Foundation’s Trademark Usage Guidelines in addition to the visual branding guidelines shown on this page.
Our logo is our flag. It represents us as an organization, the amazing people who work here, the open source communities we collaborate with and the members who support us. It is also a reflection of our purpose and professionalism. It is important that it is always used the right way so that people are able to identify us at a glance. The logo has two variations. The primary “stacked” version and a secondary “horizontal” version.
This is our primary logo and should be used where possible.
This is our secondary logo and should only be used in instances where the primary logo will not be able to display correctly.
In the instance where the full-color logo can not be used, there are two variations available.
The primary logo should be displayed in white when used against a dark background.
This dark primary logo should be used in print where color or white variations are not usable.
Clear space is the minimum “breathing room” maintained around The CNCF logo itself. The clear space for the primary lock-up is determined by the height of the “E” in The Cloud Native Computing Foundation type.
The primary colors for the main CNCF brand consist of a dark purple, light blue, and gray. A secondary palette (which is used on cncf.io) extends the primary brand colors.
CNCF Medium Blue
CNCF Light Blue
CNCF Dark Purple
CNCF Bright Blue
Please follow these additional guidelines to ensure a consistent visual presence across all CNCF-branded web properties.
We use a sans serif font due to its modern and clean look which represents the character of CNCF. The sans serif font has a neutral and friendly appearance and has a full range of weights and styles that have been optimized for web and mobile. We implement this font on the web using a system font stack which guarantees it will look good on every device and load super fast without any FOUC.
System font stack
font-family: -apple-system,BlinkMacSystemFont,Segoe UI,Helvetica,Arial,sans-serif,Roboto,Ubuntu,Apple Color Emoji,Segoe UI Emoji,Segoe UI Symbol;
Body text: CNCF Dark Purple #2a0054
Links: CNCF Pink #ff00aa
H1 – 42px
H2 – 34px
H3 – 28px
H4 – 20px
H5 – 16px
body text – 16px
Font: 14px uppercase
Background-color: CNCF Pink #ff00aa
For conventions in writing “open source” and other common industry terms, please see this style guide.
For those using CNCF brand materials on a site external to CNCF, please don’t use our name, logos, or screenshots (“brand materials”) in ways that may be confusing, misleading, or suggest our sponsorship, endorsement, or affiliation. For example, your name and logo should be more prominent than The Cloud Native Computing Foundation name or logo. And please don’t edit or change the CNCF logo — we like it how it is!
Advertising, promotional, and sales materials
Please check in with us before using our logo on websites, products, packaging, manuals, or for other commercial or product use. It’s ok to say in text “Member of CNCF” or “CNCF Individual Supporter” (as long as it’s true!)
Education and instruction (books, guides, publications, and conferences)
You can use our brand materials for educational and instructional purposes but please remember that it shouldn’t be confusing, misleading, or suggest our sponsorship. For example, we generally don’t allow use of our logos or screenshots on book covers.
Also remember to include this statement (or something like it) in your printed materials: “(Title) is not affiliated with or otherwise sponsored by CNCF”
Products, websites, names, and logos
Please don’t use our name as a part of your company or service name, website name, trade name, or product name. Don’t use our logo or incorporate our logo into yours. Don’t use a domain name containing “cncf” or any confusingly similar words.
Linking to CNCF
If you want to promote your organizations affiliation with CNCF you can use our logo if it meets our guidelines. For example, “[Company Name] is a member of [linked logo].”
While we do produce lots of t-shirts for our events that have our logo on them, we don’t generally allow third parties to make, sell, or give away anything with our name or logo on it.
Please include appropriate attribution of CNCF’s ownership of its trademarks when you use them. This attribution notice can be included in the fine print at the bottom of your content. An example is, “CNCF and the CNCF logo design are registered trademarks of the Cloud Native Computing Foundation.”
Feel free to email questions to firstname.lastname@example.org. It helps if you send a mockup of your intended use so we can be specific in our response. We’ll do our best to get back to you ASAP but please give us two weeks (please note that no response doesn’t mean approval.) We’re currently only able to respond to inquiries made in English.