As of CSS3 there's no workaround needed; CSS3 adopted SVG's named-color palette, which defines both "gray" and "grey" and has both of them become rgb(128, 128,

As of CSS3 there's no workaround needed; CSS3 adopted SVG's named-color palette, which defines both "gray" and "grey" and has both of them become rgb(128, 128, 128). The color-parsing algorithm which turns "chucknorris" into a color also will return rgb(128, 128, 128) for either spelling, since it specifies that any value which is a case-insensitive match for a CSS3 named color should just short-circuit resolve to that color.