Sapphire that would say your grieving but your still strong or your grandmothers favorite color with one of your nails possible the ring finger having a little cute heart or something like that on each hand
Umm.... I honestly don't think anyone is going to be paying attention to the color of your nails at a funeral... But maybe something neutral or plain. But honestly, are you really going to worry about your nails? Is that really the most important thing to be worrying about?