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Originally Posted by Marvin Mattelson
Joan,
I have created a specific arrangement of colors on my palette based on Paxton's colors. This includes a string of neutral grays which I premix and tube.
Ken,
My neutral grays are based on 9 equal steps between the extremes of black and white paint. Other brands that manufacture neutral grays use theoretical black and white points. The values are threrfore skewed.
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Marvin,
I went to the extreme last year and premixed and tubed 50, yes I said 50 equal steps of neutral gray! This set me back several hundred dollars in materials expenses. I used Old Holland Ivory Black and Titanium White, because Old Holland happens to make a very pure Titanium White that isn't cut with Zinc or anything else. These particular black and whites are of roughly equal tinting strength, which made the formulations simpler. I gave these grays graded appellations of 5, 10, 15, 20, etc., to 250. 0 is pure black and 255 is pure white, which makes a total of 52 equal steps. You may notice that these numbers relate to the standard RGB Grayscale in Photoshop. That was my idea, to directly be able to translate any given grayscale value in Photoshop into paint values on the canvas. This works very reliably, but in practice it is just about as good to eyeball in the approximate values.
Regards,
Garth