L'Oreal Timeless Blue Spark (760) is a warm blue with a metallic finish that is permanent and retails for $7.99. In comparison, Fyrinnae Mermaid Masquerade is a cool teal with a frost finish that is permanent and retails for $8.50.
Fyrinnae Mermaid Masquerade is 85% similar — it is less shimmery, darker.