The fruit-flavored chewy candy that uses the slogan “Taste the Rainbow” is Skittles.
Skittles were introduced in Britain in 1971 and became widely available in the United States by 1979. The candy consists of small, brightly colored pieces with a hard sugar shell and a chewy center. Common varieties include Original, Sour, Wild Berry, and Tropical, although flavors and colors vary by country and over time.
The “Taste the Rainbow” phrase is a marketing slogan, not a description of the candy’s ingredients or a claim that Skittles taste like every color of an actual rainbow. The slogan was created by New York advertising agency D’Arcy Masius Benton & Bowles and became one of the brand’s most recognizable features. A common mix-up is confusing Skittles with M&M’s: both are colorful button-shaped candies, but M&M’s are chocolate-centered, while traditional Skittles have fruit-flavored centers.