It's easy! Post your original pictures day by day. Archive is OK, but better if your picture is new. Use the tag #colorchallenge and the daily tags.

• MondayRed
• TuesdayOrange
• WednesdayYellow
• ThursdayGreen
• FridaySkyblue
• SaturdayIndigo
• SundayPurple

There is no reward, this is only for fun. But if you post something very special, you can get a big upvote and resteem!