Requires a Light Base Paint Recommended Base Paint: White Base Interior Flat Wall Paintproduct code: BW4LThe ultramarine in this color keeps the color blue under a range of lighting conditions. The addition of umber rather than black fades the ultramarine without making it too gray. Many versions of this color made with standard industrial colorants will go mauve or gray in low light levels losing all sense of blue. Trio of Caesiellus Foxglove and Umber