Cobalt Blue

Cobalt blue

Cobalt blue is an artificially produced, mineral pigment with a bright luminous blue color. The pigment is unusually lightfast. The cobalt blue color traces far back in time to Persia and Egypt, but was developed in a European context in the early 1800s.

The color has previously been widely used in the glass and porcelain industry as well as the paper industry (for bleaching paper.)

Due to its high price, the pigment has had limited use in the field of painting, but has been much more widespread in art painting.

Cobalt blue is light, - oil, - water, - and calcareous.

Lightfastness

8 (on a scale where 1 is low, 8 is best)

Color power

Medium.

Coverage

Medium.

Miscibility with other colors

Can be mixed with all colors.

Binders

Can be used with all binders and in all painting techniques.

Areas of application

Can be used both indoors and outdoors.

Safety

The pigment is described in the literature as non-toxic. However, it is always advisable to use a dust mask when working with pigments.