No. The only styles that WordPress itself loads on the front-end is /wp-includes/css/dist/block-library/style.min.css, and this stylesheet doesn’t include any such classes or colours. All other styles are the responsibility of the theme.
So if you want to know if a specific theme has such classes you would need to ask the author, however I don’t know any reason why anyone would include the WordPress brand colours in their theme.
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