This is a deep, highly saturated color and so lush! Similar to Delphinium Night but clearer and a bit brighter. I think this color Violet - 13 is a great color to have in your stash. They are versatile colors and go with so many other colors. Because it is a cool color it will not take over as the warm colors do.
The swatch would be beautiful flowers! The lighter values would be great to add depth in water.
Ives Color: Violet 13-16, Dark Periwinkle Violet 13-17