---
id: fast-colors.quantizeconfig.significantbits
title: QuantizeConfig.significantBits property
hide_title: true
---
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[@microsoft/fast-colors](./fast-colors.md) &gt; [QuantizeConfig](./fast-colors.quantizeconfig.md) &gt; [significantBits](./fast-colors.quantizeconfig.significantbits.md)

## QuantizeConfig.significantBits property

Must be in the range \[1,8\]. Memory use increases as 4\*2^(3\*significantBits). Setting significantBits to 8 requires a 64 megabyte histogram.

<b>Signature:</b>

```typescript
significantBits: number;
```