When creating documents in QuarkXPress that are ultimately bound for the Web, itÆs best to limit yourself to colours that have Hex values composed only of 00, 33, 66, 99, CC and FF. If thatÆs too hard to remember, get AppleÆs HTML Picker, which has a Snap to Web Color option which will keep you on the right track. Otherwise your colours may not display correctly in some browsers.