I bought the "new " Ultramarine blue , because it looked good-slight more vibrant,bitmore intense. But until you test it, I don't exactly know how it will affect and behave with other colors. When I mixed it with alizirin-crimson, or med red with TI White , it turns to a WA Grey, not COOL Grey, which I need. Now I can not match my previous cool grey from a classic Ultramarine Blue.
Essentially the difference is that Classic Ultramarine is a red shade vs Modern which is a red shade blue. Tri art meedf to stipulate this on the web site when selecting classic vs Modern. Having said this, can I send this back to have it exchanged to classic Ultramarine Blue?