Samba (402) is described as a “cool turquoise.” It’s a darkened mint green cream. It was opaque for the most part after two coats, but the polish was somewhat streaky in places, so there were some patches that did not look quite opaque. Essie Turuquoise & Caicos is darker, less warm-toned. It reminded me a lot of Illamasqua Nomad. China Glaze Re-Fresh Mint is lighter. Essie First Timer is also similar–slightly greener.