Sea Blue.
—Two parts of Prussian blue, three parts of raw sienna, thirty parts white.
Sky Blue.
—One part of Prussian blue added to one hundred and twenty parts of white lead give a sky blue, but some prefer cobalt, and this is for many purposes doubtless the best. Still another method of obtaining sky blue is to tint white lead with a little lime blue, adding a very little middle chrome, but the latter is more suitable for a distemper colour than it is an oil paint, as lime blue is not very lasting in oil.
Steel Blue.
—Zinc white tinted with lime blue gives this colour for distemper.
Stone Blue.
—One part of raw umber, twice the quantity of Prussian blue, on a base of white lead will give this colour.
Transparent Violet.
—Mix together four parts of ultramarine blue and one part of crimson lake. This is suitable only for artists’ use.