# color/lighten
Lighten a color in HSL space by `amount` (0-1, default 0.1). Hue, saturation
and alpha are preserved; lightness clamps at white.
## Syntax
[color/lighten $color $amount]
## Examples
[color/lighten "#101018"] # "#242437" [color/lighten "#000000" 0.2] # "#333333"
## Returns
`"#rrggbb"` hex string, or `"#rrggbbaa"` when the input is translucent.
nil when the color is unparseable.
## See Also
`color/darken`, `color/mix`, `color/hex`