`darken_color()`

public static function darken_color( $color, $darken_amount, $format='hex' )

Darken a given color string by a specific amount.

Since: 2.7

Source: common.php:8049

Parameters

Name	Type	Default	Description
`$color`	`string`		The color string to modify, as a hex code (either 3 or 6 digits).
`$darken_amount`	`float`		The amount by which to modify the color, in steps.
`$format`	`string`	`'hex'`	The format in which to return the color (hex or rgb)