![]() Many years ago I ran a pottery supplies om time to time we would get painters in to buy some of the raw metal oxides used in ceramic glazes to use in their paint formulas. If you like those colors you can mix them yourself on your palette and get more variation within that color yourself. The colormakers market dozens of these romantically named mixtures, mostly for the hobby market and students. It is best to buy only named, single pigment colors, like cadmium red or ultramarine blue, rather than, hyacinth cerise deep or moonlight blue. ![]() ![]() Pthalo is used to make cerulean hue, viridian hue, cobalt blue hue, ocean blue, anteater blue, and just about every other "mystery blue". It is an inexpensive pigment and you could paint your whole house with about a quart if it was thinned properly. If you don't know what a blue that you see on a color makers list is, chances are reading the label will reveal it as a pthalo mixture. Most of the blues with names like azure blue or other evocative names are mixtures of pthalo and white. If I had no viridian I would choose pthalo to build greens. I don't often use it as I find its pigmenting strength a drawback, being so much more powerful than everything else on my palette. It will tint to green or violet and is used in printing and industry besides by artists. Pthalocyanine blue, is a permanent, extremely intense, slightly greenish blue. Now unavailable, I have heard its loss lamented many times by older artists. Manganese blue, was a permanent green-blue that was available when I was a student but was found to cause nervous system diseases. It has become very expensive in recent years and many makers only provide a hue which is, as usual, totally unsatisfactory. Prussian blue has been replaced today (except with me) by pthalocyanine which I find difficult to control.Ĭerulean blue (cobalt stanate) is a light, delicate, opaque, slightly greenish blue. I use it sometimes because it has a greenish cast that I like because it looks old timey. Prussian blue is a color that was supposedly impermanent, however the manufacturers mark it as permanent. Prussian blue is a very dark almost black, blue color. Sometimes, as I said before, I use really high key mixtures of white and viridian to make a blue that looks like cerulean. ![]() Ultramarine is my warmer blue and cobalt my cooler blue. The blue in Maxfield Parish's work is cobalt blue. Available since the early 1800's cobalt blue has long been a staple on the artists palette. Cobalt blue is a heavy metal color and is toxic, so reasonable cleanliness is important. It is an expensive color, but is worth it's price for its cool, clear, sky blue color. ![]()
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