# color/saturate Increase saturation in HSL space by `amount` (0-1, default 0.1). Alpha is preserved. Achromatic (gray) input is returned unchanged — there is no hue to boost, and boosting toward hue 0 would arbitrarily tint it red. ## Syntax

[color/saturate $color $amount]

## Examples

[color/saturate "#bf4040" 0.5]    # "#ff0000" — round-trips color/desaturate
[color/saturate "#666666" 0.2]    # "#666666" — gray stays gray

## Returns `"#rrggbb"` hex string, or `"#rrggbbaa"` when the input is translucent. nil when the color is unparseable. ## See Also `color/desaturate`, `color/grayscale`