.foo {
/* Keyword values */
	background-color: red;
	background-color: indigo;

	/* Hexadecimal value */
	background-color: #bbff00;
	/* Fully opaque */
	background-color: #bf0;
	/* Fully opaque shorthand */
	background-color: #11ffee00;
	/* Fully transparent */
	background-color: #1fe0;
	/* Fully transparent shorthand */
	background-color: #11ffeeff;
	/* Fully opaque */
	background-color: #1fef;
	/* Fully opaque shorthand */

	/* RGB value */
	background-color: rgb(255 255 128);
	/* Fully opaque */
	background-color: rgb(117 190 218 / 50%);
	/* 50% transparent */

	/* HSL value */
	background-color: hsl(50 33% 25%);
	/* Fully opaque */
	background-color: hsl(50 33% 25% / 75%);
	/* 75% opaque, i.e. 25% transparent */

	/* Special keyword values */
	background-color: currentcolor;
	background-color: transparent;

	/* Global values */
	background-color: inherit;
	background-color: initial;
	background-color: revert;
	background-color: revert-layer;
	background-color: unset;

	background-color: light-dark(#333b3c, #efefec);
	background-color: light-dark(rgb(0 0 0), rgb(255 255 255));
	background-color: light-dark(light-dark(#333b3c, #efefec), #efefec);

	/* color-mix(in <polar-color-space>, <color>, <color> <percentage>) */
	background-color: color-mix(in hsl, hsl(200 50 80), coral 80%);
	/* color-mix(in <polar-color-space> <hue-interpolation-method>, <color>, <color>) */
	background-color: color-mix(in lch longer hue, hsl(200deg 50% 80%), coral);
	/* color-mix(in <rectangular-color-space>, <color>, <color>) */
	background-color: color-mix(in srgb, plum, #f00);
	/* color-mix(in <rectangular-color-space>, <color> <percentage>, <color> <percentage> */
	background-color: color-mix(in lab, plum 60%, #f00 50%);
	/* color-mix(in <custom-color-space>, <color>, <color>) */
	background-color: color-mix(in --swop5c, red, blue);

	/* Absolute values */
	background-color: color(display-p3 1 0.5 0);
	background-color: color(display-p3 1 0.5 0 / .5);

	/* Relative values */
	background-color: color(from green srgb r g b / 0.5);
	background-color: color(from #0000FF xyz calc(x + 0.75) y calc(z - 0.35));
}
