From Bulbapedia, the community-driven Pokémon encyclopedia.

In Generation III games, one can enter his or her Pokémon into a Pokémon Contest, whilst in Generation IV games, Pokémon can be entered in Super Contests. There are five different categories of contests, used in Pokémon Contests as well as Super Contests. These Contest categories, also called Contest conditions, are: Coolness, Beauty, Cuteness, Smartness, and Toughness. Each Pokémon move is categorized under one of these five categories. In addition, Berry flavors, Pokéblock and Poffin colors, and Pokémon natures are associated with certain Contest categories.

Contest Categories
Category	Berry Flavor	Pokéblock Color
Cool	Spicy	Red
Beauty	Dry	Blue
Cute	Sweet	Pink
Smart	Bitter	Green
Tough	Sour	Yellow

Contest categories is part of a series on Pokémon Contests
	Necessary spoils Pokéblocks | Poffin Contest categories Cool | Tough | Beauty | Smart | Cute	Participation Pokémon Contest | Pokémon Super Contest Pokémon Coordinator | Contest Hall | Contest Pass Grand Festivals Kanto | Hoenn | Sinnoh