Cobalt Blue (Ultramarine)

Hue or substitute.

The name traditionally means cobalt; this tube uses other pigments. The name promises cobalt.

Cobalt pigments are costly, mix to clean, slightly cool tints and shouldn't be breathed in as dust. Hues cost much less and usually tint more strongly, but their mixes rarely look quite the same.

Compared with Cobalt Blue (Van Gogh, the same line):

• Price: this hue is series 1; Cobalt Blue from the same line is series 2.
• Opacity: semi-transparent here, semi-opaque in the genuine.