---
id: fast-colors.colorlab.a
title: ColorLAB.a property
hide_title: true
---
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[@microsoft/fast-colors](./fast-colors.md) &gt; [ColorLAB](./fast-colors.colorlab.md) &gt; [a](./fast-colors.colorlab.a.md)

## ColorLAB.a property

<b>Signature:</b>

```typescript
readonly a: number;
```