I'd say size and profile first - If its too big or fonky looking or moving too fast then they definitely wont touch it. You get that jig in the right place and looking natural and that will get their attention no matter the color. The color is the icing on the cake. But....Thats one of those extremely variable things. Really depends on the water. Is it muddy, Deep, Shallow, Fast current, Time of year, What you had for breakfast, how many stickers are on your boat, or whether your wearing your lucky fishin hat...Just cant ever tell what theyre into that day..