SPLAT hair dye questions...?

Sorry, it will eventually fade into the Ronald McDonald color lol! It will probably last a few weeks (meaning the dye itself) with normal washing before fading completely. The raspberry color (I assume that's what you want to achieve) will stay that way for maybe a week or two. Use cold water to wash any semi-permanent hair color to keep it looking fresh. It will most likely go back to your original color, the length of time depends on the condition of your hair. You may have some slight orangey remnants for a while.