EngineeringDesign Systems

Building accessible design systems that scale

An editorial take on primitives, tokens, and CSS-first theming for product teams.

Alex RiveraMarch 18, 20268 min read

Editorial cover for the design systems article

production design system speeds up delivery and keeps accessibility a default. Pair unstyled accessible primitives with semantic tokens and you get a foundation that scales across products without rewriting the hard parts every quarter.

Accessible primitives

Primitives should own focus traps, keyboard navigation, and ARIA roles. You style the surface; behavior stays consistent out of the box so every product inherits the same interaction contract.

“Accessibility works best when it is the default path, not a checklist at the end.”
— Alex Rivera

Tokens and theming

Keep colors, radius, and spacing in CSS variables. Light and dark modes swap tokens without shipping a theme runtime — consumers stay in control of the look while components stay portable.

Conclusion

Accessible behavior, flexible styling, and low runtime cost make a stack teams can adopt once and reuse everywhere.

AR

Alex Rivera

Builds design systems and component libraries for startups and product teams.

Related reading