What candy's motto is "Taste the Rainbow"?

The candy whose motto is “Taste the Rainbow” is Skittles.

Skittles are small, brightly colored, fruit-flavored candies made by Mars, Incorporated. The brand introduced the “Taste the Rainbow” slogan in 1994, turning the candy’s colorful appearance into a memorable promise of varied fruit flavors. The phrase is a marketing slogan rather than a description of a single flavor or ingredient.

Skittles were first produced in Britain in 1974 and introduced in the United States in 1979. The standard package contains several colors, although the exact flavor-color lineup has changed across countries and product varieties. Common versions include Original, Wild Berry, Tropical, and Sour Skittles.

A common mix-up is assuming that each color always has the same flavor worldwide. Flavor assignments can differ by market, and special editions often change the usual lineup. The rainbow itself is part of the brand identity, not a claim that the candies contain every natural fruit flavor.