Also give your body a chance to adjust. It may be holding the water till it figures out what to do. Best thing is to weigh once a week because it can change up to five pounds in a day-heck even from hour to hour it changes.
And with the sticks, it doesnt matter what color as long as there any color. Doesn't mean you are burning more fat if it is darker--its like being pregnant: either you are or you arent. There is no "more" pregnant of your test shows more positive. Same with ketosis.