FIGURE 1. Cobalt Blue Hue is not as intense as the genuine. The reformulated color is made up of Ultramarine Blue, Titanium White and Pthalo Blue. A close match "out of the tube", but it behaves very differently than the genuine in mixes, see
FIGURE 4.
What's that funny code in parentheses after the color names? Those are the standard international Color Index Names (C.I.N.). It refers to the pigment, either natural or manmade, that is used to formulate that particular color. For an in-depth explanation of CIN's, see
"What is the 'Color Index Name'?"
FIGURE 2. Cerulean. Almost indistinguishable from the genuine, but the difference really shows up in the
mix, see FIGURE 7.
Cerulean Blue Hue is made from Ultramarine Blue, Titanium White and Pthalo Green.
FIGURE 3. Alizarin Crimson. The JoSonja's version is somewhat more opaque than the genuine. The JoSonja's Permanent Alizarine is a lightfast
reformulation made from Quinacridone Magenta and Benzimidazolone Red .
Most importantly, Permanent Alizarine behaves itself, maintaining the integrity of color in mixes.
FIGURE 4. In these mixes using both versions of Cobalt Blue, the Cobalt Blue Hue makes a grayer color than the genuine, due to the green content in the Pthalo Blue in the "hue" formula countering the Cadmium Red.
BACK TO FIGURE 1
FIGURE 5. These two mixes are an acceptable match, with the mix using Cobalt Blue Hue being only slightly duller. The Permanent Alizarine is strong enough to stand up to the Pthalo Blue in the "hue" version.
FIGURE 6. Again, an acceptable match of the two mixes. The mix using Cerulean Blue Hue is slightly less intense.
FIGURE 7. This is the best example of the differences between mixtures using a "genuine" and a "hue"! The small amount of Pthalo Green in Cerulean Blue Hue is intense enough to overpower the red and alter the results towards green.
BACK TO FIGURE 2
Even though some of the mixtures shown above appear very similar, and may be perfectly
acceptable to use as is, be aware that they may produce dull or unexpected colors if a third color
is introduced to the mixture. My reccomendation is to spend the extra money, buy the genuine pigment and save yourself the headache and frustration .
EXERCISE:
To observe for yourself how "hues" work in mixtures, set up your own chart similar to the above examples.
If you have access to both the genuine and the "hue" versions, paint a swatch of each and label.
Use each version in a mixture and note the colors used. Keep these in a 3 ring binder.
