Well, you are absolutely right! This is just for fun, the only thing you have to do is to post original photos/art and use the tag #colorchallenge and one of the daily tags:
#MondayRed
#TuesdayOrange
#WednesdayYellow
#ThursdayGreen
#FridaySkyblue
#SaturdayIndigo
#SundayPurple
RE: ColorChallenge - MondayRed - Fly Agaric and Hybiscus