The creative brief meeting discussed name, slogan, and color scheme ideas for a new water beverage called "Mist" from two group members, Sophie and Josh. They debated the positives and negatives of plain colors versus pastel colors. In the end, they chose the name "Mist", the slogan "what if you Mist a chance to hydrate?", and a plain color scheme with bold writing to avoid distracting buyers but still stand out on shelves.