this time to say your logo has to look good on a "purely white background." So you need to test to make sure your logo is visible and I guess attractive on a white background. The guidelines have ...

a lot of our screens and signs still have plain white backgrounds because that makes it easy to read things. Remove the black ring from the logo, and we’re left with a far less distinctive shape ...

In contrast to the Trump Administration’s logo, Biden’s depicts the White House facade with architectural details like columns and windows in white on a navy blue background.