Does the background recede far enough?

[Enzie Shahmiri]

Karin and Peggy would you please refer me to samples in your own work where you have used Ivory Black as a dark blue. I am in the midst of doing my color swatches based on the colors I have used in this painting and I am experimenting with the different suggestions offered. I have a problem with the Ivory Black. When I place the two colors next to each other and squint, I see the same value with the Ivory Black being slightly duller than the Prussian Blue. So if the value is the same why not keep the Prussian Blue? Please explain.