Ultramarine Blue
This is a deep and chromatic ultramarine with good tinting strength. If you are looking for depth this paint has it. It is a short paint (though it has good glide), and high tinting strength.
A previous description of this color: ”Ultramarine Blue is a somewhat warm mineral blue which is brilliant and deep in glazes, but in tints and tones it is cold and moody.“ -Gamblin Oils. Gamblin categorizes this color as warm.