french ultramarine v ultramarine blue

What's the difference between the watercolor colors: french ultramarine and ultramarine blue. The artist series of Winsor & Newton doesn't have the slightly-warm ultramarine blue color and I was wondering if the french version is similar. If not, why doesn't W&N have a UB?

In article

+x-no-archive: yes +

+ +> What's the difference between the watercolor colors: french +> ultramarine and ultramarine blue. The artist series of Winsor & Newton +> doesn't have the slightly-warm ultramarine blue color and I was +> wondering if the french version is similar. If not, why doesn't W&N +> have a UB? + +By 'slightly warm' do you mean greenish?

A warm blue would normally tend toward violet while a cool blue leans towards green.

Andy D.

'I'm a great speller - but a hopless tpyist!'

I know that. By slightly warm, I mean slightly reddish or violet. By its basic properties, Ulatramarine Blue tends toward red. Because artist series W&N doesn't have an UM-B hue, I thought maybe that the F-UM may be the same as UM-B.

So my question is 2-fold: 1) Is French Ultramarine a cool or warm blue? closer to red or green? 2) Why doesn't Winsor & Newton's artist series contain the Ultramiarine Blue Hue?

Jack,

Try W&N Antwerp blue in watercolor. They discontinued it in oil but still have the watercolor version. It was my favorite blue for years in oil. It may not be what you're looking for, but, for mothergagging sakes, just give it a look-see. You may find a new favorite base for darks.

your pal, mr tudball (name changed to protect my investiments)

+> +By 'slightly warm' do you mean greenish? +> +> A warm blue would normally tend toward violet while a cool blue leans +> towards green. + +I know that. By slightly warm, I mean slightly reddish or violet. By +its basic properties, Ulatramarine Blue tends toward red.

[snip]

Yep. I was responding to 'dkra'. I'm afraid I can't help with your questions.

I use French Ultramarine in Art Spectrum Oils. This is a series 3 colour (compared to the Series 1 Ultramarine). The lightfastness and opacity are rated the same for both - and for the life of me, I can't remember why I switched.

Have you tried writing to Winsor & Newton and asking them?

Andy D.

'I'm a great speller - but a hopless tpyist!'