On Jul 10, 2006, at 9:43 AM, Katharine Thayer wrote:
>
> Hi David,
> You can darken a pigment by adding black, as has been suggested,
> but another and perhaps better way is to add some of the
> complementary color. Painters have been doing this for centuries.
> Unfortunately I can't tell you off the top of my head what the
> exact mixing complement would be for PR 101, (all my books and
> papers are still in boxes) but since burnt umber is a good mixing
> complement for ultramarine, my guess would be to go a little
> greener for the complement for PR101, which is redder than burnt
> umber. So, maybe Prussian (a good Prussian, not one of the ones
> that shifts-- look at handprint.com to see which are the permanent
> Prussians,
Or for that matter, pthalo (the green shade pthalo, PB 15:3) might
also work okay; just don't use very much of it, as it's a very
intense pigment and would easily overpower the earth red pigment.
Katharine
Received on 07/10/06-11:21:17 AM Z
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