If anyone needs the color mixing formula page...

Gamble_Nelkin

I've been getting some emails about where the color mixing formula page went (and had to hunt it down myself!). While we're restructuring some things on the two websites it will be tough to find. Here it is for anyone who might need it:

http://www.drawmixpaint.com/color-matching-formulas.html

Kaustav

Thanks for sharing.

H.M

Gamble
What about the easel?
I thought I heard Mark is working on another design?
Can that page be restored as well?
Thank you!

Gamble_Nelkin

He's still finalizing easel designs, but as soon as they're ready for sale there'll be a page for them! 

ZIM

Do you have a formula for cerulean blue?

Mark_Carder

Not yet, I think it will require a bit of pthalo blue, which we will be adding to our paint line soon.

MikeDerby

Does anyone have a formula for mixing Pthalo Blue from the base pallette?  I cannot seem to pull it off.

dencal

Mike

Pthalo is one of the power pigments not possible to mix. Buy a tube or wait for the Geneva product.

Denis

tassieguy

Mark, I need an easel. Send one to Australia along with some Geneva paints ASAP.

Richard_P

You probably only need a tiny bit of Pthalo Blue as it's strong in tints, so it will probably be enough to add a bit from a tube.

avenueart

Thanks for sharing @Gamble_Nelkin

Waiting for easel design..

Hank

Thanks for that. 

ph1

Is the color 'Winsor Blue' by Winsor Newton equal to or very similar to Phthalo Blue?

dencal

ph1

Yes.

extract from 
http://www.winsornewton.com/na/discover/articles-and-inspiration/spotlight-on-winsor-blue

Winsor Blue is made of an organic synthetic pigment: copper phthalocyanine. Alternative names are Phthalo Blue, Monastral and Intense Blue. It is a deep and intense blue which approaches black in mass tone and has either a red or green undertone leading to the variations of Winsor Blue (Red Shade) or Winsor Blue (Green Shade). It has great tinting abilities, is transparent and completely permanent. In water colour it has staining properties.

Winsor Blue was created in the mid 1930s, and was launched by Winsor & Newton in 1938 (Winsor Green followed a few years later). It comes from the phthalocyanine family of colours which were first chemically synthesized in the late 1920s. Many new synthetic organic pigments were being discovered around this time, however only three were universally accepted for their artist quality in the 1950s: Phthalocyanine Blue, Phthalocyanine Green and Alizarin Crimson.

Winsor Blue was created to replace the capricious, less reliable Prussian Blue. It has many of the same properties including its intense richness of pigment and therefore great tinting abilities. It mixes very well with other colours (though one must be careful not to let it overpower) and when thinned, can be used for glazing with great effect. It is stable, intense and insolvable except in sulphuric acids. A reliable colour, Winsor Blue or Phthalo Blue is present in most colour ranges and is a great asset to any painter.

Denis

Richard_P

Most brands refer to them as Phthalo Blue which I prefer to Winsor Blue!

ph1

Assume the name 'Winsor' is a WN brand name for the color.  The WN tube says PB15, PY3.  Would this be a greenish or reddish phthalo blue? 

When color mixing the results were virtually identical (small differences in the greens and purples that could be just my imprecise mixing). 

My Phthalo Blue is a local brand (PB15.3 only).  It may be a color where it pays to buy a quality brand. 

dencal

ph1

Pigment Yellow 3 (PY3) suggests a greenish phthalocyanine blue.

Denis

Richard_P

PB15 suggests PB15:1 which is the more bluish version, (PB15:3 is the greener version). Looks like that are adding Hansa Yellow (PY3) to make it more turquoise. 

ph1

Are there differences between Ultramarine blue, French Ultramarine blue and just Ultramarine?  If so, are the differences subtle or worth noting.  

dencal

ph1

FUB is distinct by being synthetic in its chemical composition and is toward the violet range.

https://www.facebook.com/notes/blick-art-materials/understanding-the-blues-ultramarine/10150761200975874/

Denis