What the Figma component library and the code component library should share

The common ambition for a design system is perfect parity: every component in Figma matches exactly what's in code, every variant maps to a prop, every token in the Figma variable library is mirrored in the CSS custom properties. This sounds right and doesn't work.

Figma and code are different tools for different purposes. Trying to make them identical produces compromises that serve neither. The real question is more specific: which things need to be synchronized, which need to be equivalent but not identical, and which can diverge without causing problems?

What needs to be identical

Tokens are the clearest case for exact parity. If --color-text-primary in your CSS and color/text/primary in your Figma variables resolve to different values, you have a system that produces inconsistent outputs for designers and engineers working from the same design specs. Designers will use the Figma values, engineers will use the code values, and the shipped product will look like neither.

Token parity is the baseline, and it's harder to maintain than it looks. Figma variables have limitations: they can't express all the token types your CSS needs, like shadows, gradients, or font stacks. The sync breaks every time someone updates the CSS tokens without updating the Figma library, which is a workflow problem as much as a tooling problem.

The discipline that makes this work is treating the Figma variable library as part of the design system's release process, not as a design artifact. A token change that ships to code without shipping to Figma is a breaking change in the design tooling. That framing helps make the case for synchronizing updates. It's not design-systems housekeeping, it's a quality gate.

What needs to be equivalent but not identical

Component structure is where the most useful divergence lives.

A button in Figma has layers. A button in code has props. These are not the same thing, and forcing them to be the same produces bad outcomes in both directions. The Figma button with every possible state and variant visible in the layer structure is a useful design tool. The React button component with a layered structure that mirrors Figma's is an anti-pattern.

What they should share is the semantic surface: the same variants, the same states, the same accessible labeling. If the design system has a button with variant="primary", variant="secondary", and variant="ghost", the Figma component should have exactly those three variant values, not "Default Button" and "CTA" and "Outlined." The naming has to match.

This is where design-to-handoff breaks down most often. A Figma component with vague variant names like "Style 2" or "Alternate" gives engineers no information about which prop value to use. A Figma component with variant names that match the code's prop values means developers can read the design spec and write the correct prop without looking anything up.

The layer structure, the grouping of elements within the component, the auto-layout constraints: none of that needs to match the code. But the API surface, the names of the choices, has to.

Props that don't exist in Figma

Code components routinely have props that have no Figma equivalent, and this is fine. Callback props like onClick and onChange. Forwarded refs. aria-label, aria-describedby, and other accessibility attributes that are invisible in Figma. Loading states that are implemented in code but not worth maintaining in the design library because they're never referenced in static specs.

The list of code-only props is usually longer than teams expect, and it causes friction when designers don't know these props exist. A design spec that doesn't account for the isLoading state of a button is a spec that engineers will have to fill in. This isn't a design systems failure. It's a communication gap that gets closed by documentation.

The place for code-only props is the component's written documentation, not the Figma file. Document them. Explain when they're used. Don't try to represent them in Figma because the representation will be awkward and won't stay current.

Figma components that don't exist in code

The inverse is also common and more problematic. A Figma component library grows faster than the code library because adding a Figma component is cheaper than implementing, testing, and documenting a code component. Teams accumulate Figma components that don't exist in code and quietly stop treating parity as a goal.

The problem surfaces during engineering handoff: a designer has built a design using a Figma component that hasn't been implemented, which means the engineer either builds it locally (outside the system), finds the closest existing component and uses that instead, or raises a ticket that sits in the backlog.

The fix isn't to never have Figma components without code equivalents. Sometimes speculative design happens in Figma before the component is ready to build. But speculative Figma components should be clearly marked as such. A status annotation in the Figma component ("in progress," "design only," "not in system") prevents the ambiguity that costs engineering time during handoff.

Some teams track this with a component status page in their doc site. Every component has one of a small set of statuses visible to both designers and engineers. When the status is "design only," everyone knows what to expect.

The synchronization workflow

The hardest part of maintaining Figma-code parity isn't the tooling, though tools like Token Studio and Tokens Studio for Figma help. It's the workflow.

Token changes need to update both the CSS source and the Figma library in the same release cycle. Component API changes need a corresponding update to the Figma component's variant values. New components landing in code need a parallel announcement that the Figma component is available.

Without an explicit handoff process between the design side of the system and the code side, these things get done by whoever remembers to do them, which means they don't always get done. The Figma library gets behind. Designers start working around the system. Engineers find that Figma specs reference components with different names than what exists in code.

The synchronization isn't a tooling problem to be automated away. It's a coordination problem, and it needs someone on the design systems team who owns it explicitly. Not as a task but as a responsibility.