# color/grayscale
Fully desaturate a color (saturation = 0). Lightness and alpha are preserved.
## Syntax
[color/grayscale $color]
## Examples
[color/grayscale "#ff0000"] # "#808080" [color/grayscale "#89b4fa"] # "#c2c2c2"
## Returns
`"#rrggbb"` hex string, or `"#rrggbbaa"` when the input is translucent.
nil when the color is unparseable.
## See Also
`color/desaturate`, `color/luminance`