A J Ludlow Cobalt Turquoise Professional Watercolour

Cobalt Turquoise is just one of the bright and exquisite Professional Watercolours from A J Ludlow. Being based on a single pigment with excellent permanence and light fastness, ensures that this watercolour’s properties are exceptional. As with all our fine-art materials, Cobalt Turquoise watercolour is lovingly handmade in the UK by a skilled artisan from the best ingredients and finest pigments.

Cobalt Turquoise professional quality watercolour is supplied in a 15ml glass jar, because:

• The watercolour’s wet mass tone can be seen through the walls of the jar;
• The colour can be easily transferred from the jar to the palette with a palette knife.

But more importantly, there is no need for unnecessary additives or formulation changes to make processing in our colour manufacturing workshop easier, allowing the Cobalt Turquoise watercolour made by A J Ludlow to be at the highest pigment concentration and the pigment’s unique properties to be uncompromised. Anything less would be at odds with the brilliance and performance demanded of a professional quality watercolour range.

This Professional Watercolour is prepared using the mixed metal oxide inorganic spinel structured pigment, cobalt nickel titanate, which gives the watercolour its bright and intense teal colour excellent light fastness and opacity. It therefore affords an opaque watercolour, which is semi-opaque in thin washes (as can be seen in the figure 1a below).

Figure 1: Assessment of (a) the opacity/transparency and (b) staining power of A J Ludlow Cobalt Turquoise Professional Watercolour*.

The Cobalt Turquoise watercolour does not lift out completely (as can be seen in figure 1b above) and so has a propensity to stain the watercolour paper slightly.

This watercolour has a fluid consistency and is easily transferred to the watercolour palette. The pigment used in this watercolour is relatively heavy and so has a natural tendency to separate slightly on standing in the jar. If this occurs, just stir the watercolour gently in the jar with a clean palette knife until the watercolour is fully homogeneous again.

This watercolour has a hue, which is not too dissimilar to the blue-green mineral of the gemstone, Turquoise. The word turquoise is derived from the French word, turque meaning “Turkish” as the gemstone was originally imported into Europe from Turkey. Although the colour turquoise is now associated with hues midway between blue and green, the fact that this watercolour is so similar to the colour of the gemstone, it was named Cobalt Turquoise.

Figure 2: Examples of different colours obtained with a variety of A J Ludlow Professional Watercolours individually mixed with Cobalt Turquoise.

This watercolour is often over looked as a mixing colour, because of its bright and unique hue, but it can be used to create a series of unique light greens and blues (as shown in figure 2 above), which makes it an ideal part of the A J Ludlow Professional Watercolour range.

Pigment Details: Cobalt Nickel Titanate / Colour Index Pigment Green 50 ( C.I. PG50)

Footnote:

*Details of how each watercolour is tested are given in the May 2021 ARTicle “Testing and Assessing the Properties of Watercolours – Part 1 ” (see also Part 2 of the ARTicle, which was published in June 2021).