Designing accessible color systems and ensuring contrast across themes
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[Why contrast still breaks at scale (WCAG fundamentals and common blind spots)] [How to structure color tokens so themes don't betray accessibility] [Practical test matrix: how to test contrast across themes, states, and components] [Developer handoff and CI: tokens, Storybook, and automated contrast checks] [A ready-to-run checklist and step-by-step protocol] Color contrast is the accessibility failure you'll still discover the day before release — not because WCAG is vague, but because the