Easy Lover is described as a "ultra-sheer hot pink." It's a muted, cool-toned pinky-purple with iridescent shimmer. It is, as described, incredibly sheer. On my lips, it just made them look slightly pinker and added some shimmer, but it's barely-there. The color seemed to emphasize my lip lines. It lasted for two and a half hours on me. MAC Playful Petal (LE, $20.00) is very similar. Revlon Sugar Violet (P, $7.99) is more pigmented. MAC Rhythm (LE, $15.00) is warmer. Chanel Chelsea (LE, $29.50) is similar. See comparison swatches / view dupes.
FURTHER READING: Formula Overview, which is a detailed review of the range as a whole.