---
url: /api/packages/core/src/functions/isContextual.md
---
[pantoken-root](../../../../index.md) / [packages/core/src](../index.md) / isContextual

# Function: isContextual()

> **isContextual**(`value`): `boolean`

Beta

True when a value cannot be a typed `@property` initial-value (`var()` / `light-dark()`).

## Parameters

### value

`string`

## Returns

`boolean`

## Example

```ts
import { isContextual } from "@pantoken/core";

isContextual("var(--x)");            // → true
isContextual("light-dark(#fff, #000)"); // → true
isContextual("#fff");                // → false
```