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[Home](./index.md) &gt; [@three3d/volume](./volume.md) &gt; [GradientData3DToImageData3DOptions](./volume.gradientdata3dtoimagedata3doptions.md) &gt; [voidColor](./volume.gradientdata3dtoimagedata3doptions.voidcolor.md)

## GradientData3DToImageData3DOptions.voidColor property

**Signature:**

```typescript
voidColor?: [number, number, number, number];
```