WebKit needs @color-profile support from CSS3 http://www.w3.org/TR/2003/CR-css3-color-20030514/#atcolorprofile This is also required by SVG: http://www.w3.org/TR/SVG/color.html#ColorProfileAtRule
@color-profile has been dropped from CSS3 Color: http://www.w3.org/TR/css3-color/#dropped