USWDS Design Tokens: Color
The pattern
This still sits in the public-domain pool. No pattern name yet.
Why it works
USWDS codified color tokens with mathematical contrast grades, ensuring every digital government service met accessibility thresholds by default. Standardizing semantic color scales prevented design fragmentation across hundreds of federal agency portals.
Steal this when
Steal this when building multi-brand or multi-agency digital design systems where accessibility tokens guarantee compliance across federated teams.