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Author Topic: The light blue on blueberries  (Read 890 times)

BeaSue

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on: June 18, 2016, 11:42:08 AM
Any suggestions about how to obtain the light blueish-white color that you sometimes see on blueberries and blue grapes? I was thinking about using white gouache tinted with a little blue after I'd finished painting the fruit. I'm not sure that retaining the white of the paper is the best thing to do in this situation.
--Susan

"Creativity is harnessing universality and making it flow through your eyes." Peter Koestenbaum


mea hamo pena

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Reply #1 on: June 18, 2016, 12:01:20 PM
Hmmm...Susan.   I was just looking for an experiment.  I will try some different techniques on blueberries and let you know what I find. 

Hope you don't need an answer immediately.  Will have it done in about an hour or so.

aloha

mea (I love experimenting - besides summer is blueberry season!)
A day without art is like a day without sunshine.


BeaSue

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Reply #2 on: June 18, 2016, 12:32:55 PM
No rush, Mea. I'm still in the tracing stage. I'll be actually painting blue grapes, and will probably try some experimentation of my own, but thanks for testing this, too.
--Susan

"Creativity is harnessing universality and making it flow through your eyes." Peter Koestenbaum


mea hamo pena

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Reply #3 on: June 18, 2016, 02:13:44 PM
OK, blueberry experimentation was fun.

   

I thoughtCOBALT would be best, so started with my KOI travel kit cobalt, but it was to aqua colored, so I washed over it with Koi ultramarine from the same kit.  Looking back, the aqua underpainting if done very lightly might be good as it shows up in the reference photos.  My other cobalts were all good as is (Holbein, Cotman, and Daler Rowney).

Masking off the white of the paper is a waste of time because you really need the bluish tinge under it.

In the second row, I did Maimeri ultramarine blue (#393) and the white gouache. 

I used Cotman Purple Lake  (#544)as a wash wherever the purple showed in the reference photo.

Bottom line - I'd use a light aqua underpainting, good cobalt and/or ultramarine blue (going very light where the highlights are, a wash of a purple tone where needed, and frost it with light white gouache where needed.

If no gouache, could probably burnish with a white colored pencil.

aloha

mea (DUH! Should have used real blueberries for reference then I could have eaten them!!)
A day without art is like a day without sunshine.


Danielle123

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Reply #4 on: June 18, 2016, 02:31:28 PM
 Susan instead of a coloured pencil you could try to  use your white WC pencil on top of your very light blue
Danielle
Pourquoi remettre à plus tard ce qu'on peut faire aujourd'hui?
Why put off until tomorrow  what you can do today.


BeaSue

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Reply #5 on: June 18, 2016, 06:44:58 PM
Wow! Thank very much, Mea for you tests. Danielle, I think your suggestion is a good one, too. I will do a few tests myself,  :detective:  but you have both given me some really good suggestions.   O0
--Susan

"Creativity is harnessing universality and making it flow through your eyes." Peter Koestenbaum


Kathysutterlin

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Reply #6 on: June 18, 2016, 08:26:56 PM
 O0 This is awesome, Mea!
Kathy S.


mea hamo pena

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Reply #7 on: June 18, 2016, 09:24:13 PM
Thanks, KathyS and Susan.  As you can see from the blank blueberries, I had planned to try a bunch of different blues but ran out of time.  I may try a bit of Prussian blue for the very darks and see how it looks.

I just love experimenting.

aloha

mea
A day without art is like a day without sunshine.


musika

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Reply #8 on: June 18, 2016, 11:35:13 PM
Susan, you might want to look at Dennis's "Still Life with Fruit" starting at about 1hr 35m.
It's in the Watercolour - Still Life section.
Ray


BeaSue

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Reply #9 on: June 20, 2016, 07:54:35 AM
Here is my test:

I found that the WC pencils & water-soluble wax pastel crayon looked too bumpy when just used dry. When I applied water, the pencils totally washed out, but the pastel crayon showed some promise, so I tried again with a heavier application. It looked very smeary to me, and I didn't have much control. Also, the crayon tended to make the underlying blue a pastel shade, instead of sitting on top of the blue & retaining the white. Then I tried the gouache. A light application on top of the dried Antwerp Blue provides the effect I have been looking for.
--Susan

"Creativity is harnessing universality and making it flow through your eyes." Peter Koestenbaum


mea hamo pena

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Reply #10 on: June 20, 2016, 10:03:18 AM
Susan,

I had fun experimenting with the blueberries, too.  I do not have antwerp blue, but agree that a light wash of gouache works well.  My best blue was Holbein cobalt.  The purple and aqua (even viridian) light washes help to define the colors, too.

Look forward to seeing your finished product.

aloha

mea
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BeaSue

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Reply #11 on: June 20, 2016, 10:12:01 AM
Mea, Antwerp Blue has proven to be one of my favorites. It's useful for deeper blue in a sea painting, and creates a very vibrant black when combined with Alizarin Crimson or Permanent Rose + Burnt Sienna. (I do a lot of black backgrounds, and sometimes I like to layer those 3 colors, which allows some of the color to glow through the black.) It will work well for my blue grapes, with a little Prussian Blue for the deeper parts.
--Susan

"Creativity is harnessing universality and making it flow through your eyes." Peter Koestenbaum


 

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