// Colors

@function color-yiq($color, $dark: $text-dark, $light: $text-light) {
	$r: red($color);
	$g: green($color);
	$b: blue($color);

	$yiq: (($r * 299) + ($g * 587) + ($b * 114)) / 1000;

	@if ($yiq >=$contrast-threshold) {
		@return $dark;
	}

	@else {
		@return $light;
	}
}

@function set-text-color($color) {
	@return color-yiq($color);
}

@function set-heading-color($color) {
	@return color-yiq($color);
}

@function set-bg-color($color) {
	@if (lightness($color) > 65) {
		@return darken($color, 30%);
	}

	@else {
		@return white;
	}
}