[skullmonkeys]

When I'm buying paints some are labeled 'hue' after the pigments names. like.
Cerulean Blue [hue]

Does this mean anything? Should I watch out for these types?

[Reakshun]

according to an instructor of mine, hues are less toxic than pure pigments.
They are less brilliant, but lifespan is lengthen. This goes for oils and acrylics.

[scallywag]

This is my understanding:

The colour of a pigment depends on the whole spectrum of colours that it reflects. So deep blue is actually reflecting 5% red, 7% orange... 75% blue.. etc etc. The human eye takes this spectrum of colours and produces a final colour by integrating the whole lot.

Now there are a lot of different ways that you can add up a spectrum of colours in the eye to produce the same final effect. These mixtures have exactly the same apparent hue (when pure-from-the-tube) but might be much cheaper or more expensive to make (some chemicals are cheaper than others).

Ah-ha!

That's what the (hue) means - it's a different chemical mixture than produces the same apparent hue. Does this matter? Well... maybe... because it's the detailed properties of the rest of the pigment's reflection spectrum that determine how a pigment mixes with other pigments (there are a few other parameters too - like the opacity). So while a (hue) colour might look just like a "traditional" colour out of the tube it might (or might not) mix like it. You can't be sure.

That's the problem.



If you want to understand in more detail I'd really seriously recommend you look at one of the books by Michael Wilcox ("Yellow and Blue don't make green" or "Advances in colour harmony and contrast").

[skullmonkeys]

Ah I see.

But if Hue is the same doesn't that mean the light spectrum is the same too?
Since the light reflected is the same as the traditional ones.

Yeah Im going through the book Blue and yellow don't make green. Using Chromacolor acrylic paints. It seems to give close enough results. Whereas when i used WN Galleria brand I had trouble.

Anyone tried Chromacolor?

[scallywag]

[Heysoos]

the thing with hues is that it isn't just about mixing colors together. When dealing with mixing paint you are mixing the chemical ingredients. something like Cobalt Blue Hue won't actually have any cobalt in it (hence the less toxicity), it might look good enough by itself but if you try mixing it too make a strong purple or something your going to end up with something brownish instead. One of my instructors once did a demonstration like this and the effects are very apparent.
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