Eerie black (#1B1B1B) and French sky blue (#77B5FE) appear together across 4 master palettes in our corpus, most prominently in the work of Rosa Bonheur and the Romanticism tradition. Painters typically deployed eerie black at an average of 5% of the canvas, with french sky blue at 2%. Third colors most often completing the combination include Charcoal (#36454F), Queen blue (#436B95), and Olive Drab (#3C341F).