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Pigment pair · PR206 + PB28

Mixing Alizarin Crimson (permanent) and Cobalt Blue

Nine steps from one to the other, worked out with a spectral model rather than by averaging screen colors. Half and half gives #541E4D. Click any step to open it in the mixer.

The full range, Alizarin Crimson (permanent) to Cobalt Blue

Ratios are parts by volume, the way you would put them out on a palette.

These two are close enough on the color wheel that they never cancel. Every mixture between them keeps its saturation, so this is a pair for building color, not for knocking it back.

The same range with white added

Two parts titanium white to one part of the mixture above. White lifts the value but also takes the chroma down, which is why a tint is never simply a lighter version of the same color.

The same range as a watercolor wash

Roughly one part paint to two parts water, over white paper. Remember that watercolor dries up to about thirty per cent lighter than it looks while wet.

What you are working with

PigmentIndexStrengthOpacityLightfastIn
Alizarin Crimson (permanent) PR206 7/10 transparent good Oil, Watercolor
Cobalt Blue PB28 4/10 semi-opaque, granulating excellent Oil, Watercolor

A cool, transparent red. With blue it gives violet, with white a cool pink.

A neutral blue, low in tinting strength. Ideal for skies that should not go harsh.

Now do it with your own paints

This page assumes two tubes. The mixer works from everything on your palette at once, and from a color you pick out of your own photo.

Open in the mixer Start from a photo

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