Czechoslovokia Ultramarine?

Are Scott and Michel wrong about this stamp's color?

CZ #137 unwmk is ultramarine and it looks ultramarine to me, but the wmk #119 common variety is said to be blue with the rarer variety ultramarine and I have always only seen the exact same ultramarine color for it. (see below)
The little stamp on the left is said to be deep blue

My chances of always stumbling onto the rarer variety are extremely low.

Does anyone here have both the blue and the ultramarine stamps for comparison?

Just looking at your scans,
I would never have guessed ultramarine,
they all look deep blue to me.
Ultramarine to my way of thinking appears
lighter and brighter than those.

They look Blue/Deep Blue to me as well.
In Gibbons they are Blue.

Ultramarine is a much paler/cloudier shade.

But the differences in colour between the catalogues is immense.
So I am not surprised.
Even Gibbons differ in some of their colours between the simplified and the concise !

Still, it does not solve your shade problem does it. I will check some copies this week and see if I can find a difference.

Londonbus1

butterfly, I tend to agree with Rod that ultramarine is a brighter shade of blue not indicative of your scans. I have a Stanley Gibbons Stamp Colour Key and below you will see images of the blue and ultramarine colors. They don't show the difference as well as in natural light. In fact, in natural light the blue is paler than the image below.

This is one of my favourite stamps, the Jammu & Kashmir watercolour 4 Anna of 1866 (SG 5a), and listed as 'ultramarine'



which I reckon is spot on as a description of the colour. Note the greater richness of the shade than an ordinary 'blue'.

Woodblock, Tony?

Thanks for the feedback. Does SG then list two colors for the watermarked first printing?

The term 'ultramarine' is used very loosely. I've seen it used to describe stamps which are a paler blue than the blue shown here and have nothing whatsoever in common with the ultramarine shown here.

Carved potato.

butterfly, a few months back there was a discussion of blue that was entertaining:

https://goscf.com/t/11682

The initial focus was indigo, but it wandered around through deep and ultramarine. Interesting reading, I'd say. Worth three minutes of your time.

Butterfly,

I don't have any Czech ultramarine but here are three described by Scott as being dark blue (#73, 1920 60h), blue (#119, 1926-7 2k) and deep blue (#164, 1929 2.5k).

Steve

Scott lists this (254B) as ultramarine, only:

OK, I think they made a mistake calling 137 ultramarine. It should be a dark blue, and maybe there is an ultramarine version of 119 out there, though I have yet to see one.
The blue discussion was interesting -- lots of food for thought. I will make it a project to become better informed on color and will post if I learn anything useful.