Accessible Markup in Lightning Base Components

Overview

Salesforce docs state base components contain accessible HTML markup from Lightning Design System and follow best practices for keyboard behavior and ARIA roles. The inclusion move is leveraging shared primitives so app teams start from accessible defaults instead of rebuilding patterns inconsistently. Benefit: fewer accessibility regressions across large product surfaces. Lesson: platform-level components are leverage points and one fix can improve many downstream apps.

Why it matters

If accessible behavior is not standardized, each product team can reintroduce barriers like keyboard traps and mislabeled controls. The benefit of addressing this at the system level is consistency and lower cognitive load for users relying on predictable interactions. Call to action: centralize accessibility in your component library, then enforce usage via tooling and review gates.