How to darken Ultramarine Blue without killing its depth. Mixing it directly with black gives you a dull "Flat Navy". For a rich, luminous "Twilight Sky", use this smart recipe: Ultramarine Blue, Quinacridone Magenta, and just a touch of Phthalo Green. The secret? Add depth, not blackness. Save this mix for night skies, deep shadows, and any blue that needs to be dark yet full of color 🌌 I often use high-quality materials from @dartecor_ in my videos. If you'd like to try them, you can get 10%

Ultramarine blue: Color codes, color palettes, and uses