Function hslToHex

hslToHex(hsl?: string | [h: number, s: number, l: number]): undefined | string
Returns the converted hex color from the given hsl color
Parameters
- Optionalhsl: string | [h: number, s: number, l: number]
  the hsl color to inspect
Returns undefined | string
the converted hex color from the given hsl color
Author
David Hsing
Example
```
hslToHex('hsl(360, 1, 0.5)');    // '#ff0000'
hslToHex([360, 1, 0.5]);    // '#ff0000'
```