Board Thread:Questions and Answers/@comment-65.189.213.128-20131226044308/@comment-3225604-20131226044749

Very easy: Cyan

Easy: Teal

Considerably easy: Blue

Medium: Salmon

Considerably hard: Purple

Hard: Violet

Very hard: Red

Insanely hard: Black

These categories are decided by users in the wiki, and it will give you a clue on whether you will get stuck in the level or how good you play in Candy Crush Saga.